Bug Reports

A new instance should not be considered to be renamed before it is ever joined. A new Group/Group+ instance being created for the first time is unable to be named using the VRC+ exclusive naming system, as the instance is considered to be "renamed" at that point (see "Instance rename failed" in the screenshot. This means that my group members are unable to create new named instances (despite subscribing to present a named lobby) without being able to also close any group instance. This is the only relevant permission, which affects all instance types for that group: Manage Group Instances Allows role to rename or close a group instance.

Simply having a mesh with a vertex channel that is not Float32 or Float16 (or unorm8 for the color channel) causes server-side validation to fail (For a list of vertex attribute formats see https://docs.unity3d.com/2022.3/Documentation/ScriptReference/Rendering.VertexAttributeFormat.html ). While these are unusual, certain optimization tools will use these for normal/tangent/uv1 to reduce vertex size, something that is especially important for mobile (for example see https://github.com/StressLevelZero/CustomStaticBatching ). Integer formats are also important for some use-cases. World with fixed-point mesh: https://vrchat.com/home/world/wrld_e9f594c3-f33f-4638-8df4-711afc6bce4e/info Joining this world will send you back to your home, and print this to the log: Error - [API] [2570, 403, Get, -1 https://api.vrchat.cloud/api/1/analysis/file_b25715ea-6d63-408a-be18-a279972580c0/102/security] Abandoning request, because - File forbidden Error - World 'wrld_e9f594c3-f33f-4638-8df4-711afc6bce4e' did not pass initial checks and won't be downloaded: 10 Error - Error Downloading or Instantiating Custom Scene - Fixed-Point Mesh - 10 Steps to reproduce: Download any of the attached Mesh_* files and rename the file from the canny-generated hash to the original name plus .asset as the extension. Move one or more of these into the assets folder of a VRC world project. 1a. Alternatively, download/rename CreateNonStandardMeshes.cs into your project. Then run Create Debug Meshes->Create from the top bar. This will generate the meshes in your root Assets/ folder. Make a new scene with the VRC World template. Place a cube in the scene, and change the mesh filter's mesh to the Mesh_* mesh you copied in 1. Build and publish. Try to load the world and you will be kicked to your home. Checking the log reveals the map has failed validation

Open VRChat Trying to join Midnight Rooftop Downloading the world. After reaching 100% it sends you back to the Home World Here the Part from the Log file. 2025.07.23 07:04:29 Debug - [Behaviour] Switching to network region eu (current state: Disconnected) 2025.07.23 07:04:29 Debug - [Behaviour] Requesting join token 2025.07.23 07:04:29 Debug - [Behaviour] Connecting to realtime network 2025.07.23 07:04:29 Debug - [EOSManager] AntiCheat Session End: Success 2025.07.23 07:04:29 Debug - [EOSManager] [Info][LogEOSAntiCheat] [AntiCheatClient] [BeginSession-003] Mode: 1 2025.07.23 07:04:29 Debug - No local config found at 'C:/Users/XXXX/AppData/LocalLow/VRChat/VRChat\worldconfig\wrld_d29bb0d0-d268-42dc-8365-926f9d485505' 2025.07.23 07:04:29 Debug - [Behaviour] Preparing assets... 2025.07.23 07:04:29 Debug - [EOSManager] AntiCheat Session Begin: Success 2025.07.23 07:04:30 Debug - [Behaviour] OnCustomAuthenticationResponse 2025.07.23 07:04:30 Debug - [Behaviour] OnConnected 2025.07.23 07:04:30 Debug - [Behaviour] OnConnectedToMaster 2025.07.23 07:04:30 Debug - [Behaviour] Connected to master in eu 2025.07.23 07:04:37 Error - Error Downloading or Instantiating Custom Scene - Midnight Rooftop - 12 - Error loading asset bundle from ****: Data Processing Error, see Download Handler error 2025.07.23 07:04:37 Error - Attempted to remove a download handle that has been released from cache. System.InvalidOperationException: Attempted to remove a download handle that has been released from cache. at ÍÍÍÍÎÎÎÏÎÏÏÎÎÌÏÌÍÏÏÎÌÎÏ.ÏÍÎÍÎÌÍÎÏÌÏÍÎÎÎÎÎÏÌÌÍÏÌ () [0x00000] in <00000000000000000000000000000000>:0 at ÏÌÏÍÌÏÌÌÎÌÎÏÌÌÏÍÎÏÏÌÎÌÌ.ÌÎÏÏÏÎÍÏÎÌÎÌÌÎÏÍÍÍÍÌÌÏÎ (ÌÌÎÎÌÍÍÌÏÎÍÎÎÏÎÎÍÌÏÌÎÍÎ ÌÌÏÎÏÌÏÏÍÍÍÏÍÌÎÌÏÎÍÍÍÌÏ, System.String ÌÍÌÍÏÌÌÌÏÍÍÍÏÍÌÍÌÌÍÌÍÍÍ) [0x00000] in <00000000000000000000000000000000>:0 at ÏÌÏÍÌÏÌÌÎÌÎÏÌÌÏÍÎÏÏÌÎÌÌ.ÌÎÌÍÏÎÌÌÏÎÌÎÍÎÌÌÎÏÏÌÎÍÎ () [0x00000] in <00000000000000000000000000000000>:0 at Cysharp.Threading.Tasks.UniTaskCompletionSourceCore`1[TResult].TrySetResult (TResult result) [0x00000] in <00000000000000000000000000000000>:0 at Cysharp.Threading.Tasks.UniTask+WaitWhilePromise.MoveNext () [0x00000] in <00000000000000000000000000000000>:0 at Cysharp.Threading.Tasks.Internal.PlayerLoopRunner.RunCore () [0x00000] in <00000000000000000000000000000000>:0 2025.07.23 07:04:37 Debug - [AssetBundleDownloadManager] Average download speed: 16020986 bytes per second 2025.07.23 07:04:37 Error - [Behaviour] Downloading the room failed. 2025.07.23 07:04:37 Debug - [Behaviour] World download took 7,840.3ms 2025.07.23 07:04:37 Debug - [Behaviour] <color=red>Resetting game flow because "Downloading the room failed": [ClearDestinationWorld, SkipLogin]</color> 2025.07.23 07:04:37 Debug - [Behaviour] waiting for UI Manager 2025.07.23 07:04:37 Debug - [Behaviour] showing disconnect reason 2025.07.23 07:04:37 Debug - [Behaviour] showing alert 2025.07.23 07:04:37 Debug - [Behaviour] checking min client version 2025.07.23 07:04:37 Debug - [Behaviour] checking for account info update 2025.07.23 07:04:37 Debug - [Behaviour] checking terms of service 2025.07.23 07:04:37 Debug - [Behaviour] TOS current version: 11, accepted: 11 2025.07.23 07:04:37 Debug - [Behaviour] checking privacy policy 2025.07.23 07:04:37 Debug - [Behaviour] Privacy Policy current version: 2, accepted: 2 2025.07.23 07:04:37 Debug - [Behaviour] set connect error state 2025.07.23 07:04:37 Debug - [Behaviour] checking for youtube-dl updates 2025.07.23 07:04:37 Debug - [Behaviour] launching in normal manner 2025.07.23 07:04:37 Debug - [Behaviour] Going to Home Location: wrld_2a5b9936-126d-432f-8a55-cefddd1bd0f8 2025.07.23 07:04:37 Debug - [API] Requesting Get worlds/wrld_2a5b9936-126d-432f-8a55-cefddd1bd0f8 {{}} retryCount: 2 2025.07.23 07:04:37 Debug - [API] [340] Sending Get request to https://api.vrchat.cloud/api/1/worlds/wrld_2a5b9936-126d-432f-8a55-cefddd1bd0f8 2025.07.23 07:04:37 Debug - [Behaviour] Going to current users Home world 2025.07.23 07:04:37 Debug - [Behaviour] Destination requested: wrld_2a5b9936-126d-432f-8a55-cefddd1bd0f8 2025.07.23 07:04:37 Debug - [Behaviour] Fetching world information for wrld_2a5b9936-126d-432f-8a55-cefddd1bd0f8 2025.07.23 07:04:37 Debug - [API] Requesting Get worlds/wrld_2a5b9936-126d-432f-8a55-cefddd1bd0f8 {{}} retryCount: 2 2025.07.23 07:04:37 Debug - [API] [341] Sending Get request to https://api.vrchat.cloud/api/1/worlds/wrld_2a5b9936-126d-432f-8a55-cefddd1bd0f8 2025.07.23 07:04:38 Debug - [Behaviour] No destination instance provided, will need to fetch: wrld_2a5b9936-126d-432f-8a55-cefddd1bd0f8 2025.07.23 07:04:38 Debug - [API] POST initiated for destination

The new version of Thry's performance tool gives an overall texture memory value. This value was differing from the ingame stat on some avatars. Through testing, I've discovered that if you use an animation to swap a material, the textures on that other material aren't counted in the ingame stat. To reproduce the bug, you can upload the AD Tutorial Robot avatar included in the sdk. Thry and VRC will say it has 5.33mb of tex mem. Then create an 8k texture and add it to a new material. Set up an animator on the fx layer and add an animation to swap a material of the robot to the 8k material on load. Thry will report 48mb of tex mem, but VRC will say it's still only 5.33mb. You can see the screenshots of it below. And see the 8k avatar yourself in game with the avatar ID: avtr_95b5d5fd-0068-4513-89fc-fa1c6b6703f3 I've relogged and uploaded it separately to verify. I also checked the asset bundle log and it is including the 8k texture on upload. This is a big issue. Someone could easily make an avatar that has 1k textures by default that get swapped to 8k on load. The performance stats would claim the avatar is fine all while it's filling up vram.

youtube dlp is down which prevent user of using youtube on video players. Exemple log being given. VideoError: [youtube] i43tkaTXtwI: The following content is not available on this app.. Watch on the latest version of YouTube. https://github.com/yt-dlp/yt-dlp/issues/13930#issuecomment-3202145863

This was a bug reported previously during the open beta but it is now on Live. The previous bug report was marked as completed but the bug is still present in at least two maps. Several features and bug fixes to these worlds were removed due to the regression. The major issue with this bug is the regression has affected maps that cannot be re-uploaded due to projects no longer being available, but are actively still being used. Attached is an image from June 16th, 2024 showing the updated entrance to an affected world. The following picture is the current map, taken today, August 15th, 2025, showing an extremely outdated version of the entrance. The aforementioned world is a private one for usage by a closed group (The owner has requested the link not be publicly disclosed) Another affected world is this: https://vrchat.com/home/world/wrld_b174b106-5e6e-4f94-a6b6-eda6d17dfdb1/info The description notes the addition of a spawn area, however the current one that loads does not have said spawn area, as well as visual errors in some of the meshes that were corrected in later versions. This is also still present on the Open Beta

I have noticed a very irritating bug/glitch, that i don't know how to fix. when i request an invite to a private world to a friend, it comes in on their side, but their accepting invite doesn't appear at all on my side. this happens every single time for about a week now. (it started happening for me after the Cloudflare issue) and i know my friend accepted my request, cause he joined on me later, thinking i was afk, and told me that he accepted it about 3 times already, but i didn't come (confirming my invite requests do seem to go through) and i told him that none of his invites came up for me on my side, which is why i didn't (wasn't able to) join. This is really annoying the sh*t out of me, i'm hoping this will get fixed soon. I have tried completely reinstalling VRChat and deletingthe cache with no luck and tried reseting the router too, also no luck.

Join a world queue Wait until it's your turn to join Attempt to join before timer runs out, join notification disappears but user does not enter loading screen to enter new world A friend had noted that after I had tried to join the queued-for instance, the queue number bumped up due to a VIP entering the queue. I'm wondering if this issue is caused by a VIP queueing up after receiving the join notification. Really hope this gets fixed, really frustrating to wait in a queue for an hour to have your join request eaten by the system.

VRChat seems to forget the filters you've selected in the avatars wing and default back to the favorites list sorted by name. While this would go unnoticed by most, I keep mine on the uploaded list sorted by last updated. It does not remember this, and every time I restart VRChat I need to reapply these options.

I am witnessing a large number of users continuing to use avatars that have been processed under the DMCA on a daily basis. It is not a problem if, after a public avatar is processed due to a DMCA takedown, the user can temporarily continue using it. In such cases, the avatar typically becomes unusable when the user switches to another avatar or joins a different instance. However, the bug in question allows users to continue using an avatar that has been archived—even after switching instances or re-logging into the platform. It seems that as long as the user does not switch to another avatar, the archived avatar remains fully usable indefinitely. There is also a similar bug where users can continue using a public avatar even after it has been made private. This appears to be the exact same underlying issue. Despite being a long-standing bug, it has yet to be addressed. This suggests that when content is archived due to a DMCA takedown, the system may be handling it in a manner similar to when an avatar is set to private. I believe this processing behavior needs to be fundamentally changed. Risk of violating 17 U.S.C. § 512(c)(1)(C): This is a technical bug, so normally no legal liability will arise. If measures are not taken intentionally, legal action may be taken.