[PC] Repeated crash during world entry — Animator.Update(0), UnityPlayer.dll +0xb11b2d | Bug Reports

[PC] Repeated crash during world entry — Animator.Update(0), UnityPlayer.dll +0xb11b2d

available in future release

JusteRYT

VRChat intermittently crashes to desktop without an error dialog when joining a populated instance of Mafia Classic.
World ID: wrld_80d828d2-ae5f-4fa5-aaaa-072b80096995
Other players have also reported crashes when entering this world, although their crash dumps have not been analyzed.
REPRODUCTION
Join a populated Mafia Classic instance.
The world scene loads successfully.
Player/avatar initialization begins.
VRChat sometimes unexpectedly closes.
Frequency: intermittent. Both empty and populated instances have also been entered successfully.
EXPECTED
The client completes initialization and enters the world.
ACTUAL
The client crashes to desktop without an error dialog.
CRASH EVIDENCE
I captured two crashes on October 18 and October 20, 2026.
Offline analysis found the same complete 22-frame native call stack in both dumps:
UnityPlayer.dll version: 6000.0.67.6863
Exception: 0xc0000005
Fault offset: 0xb11b2d
Invalid read from address 0x58, with R13 = 0
Call chain enters UnityEngine.Animator::Update_Injected with zero delta time: Animator.Update(0).
The final log messages in both cases concern remote avatar limb initialization. No Udon runtime exception was recorded during the failed entry.
The specific Animator, avatar or world object responsible has NOT been identified. The last avatar mentioned in the log is not a confirmed cause.
ENVIRONMENT
VRChat 2026.3.3p2-1921-15c4a824b2-Release
Windows 11, build 26200
Steam installation, Direct3D 11
NVIDIA GeForce RTX 3060 Ti, 8 GB VRAM
32 GB RAM
Crash dump, full logs and detailed analysis were submitted privately through support ticket #745343.
Could you investigate the native Animator.Update(0) crash path and advise what additional diagnostic information would help identify the trigger?
World ID: wrld_80d828d2-ae5f-4fa5-aaaa-072b80096995
Other players have also reported crashes when entering this world, although their crash dumps have not been analyzed.
REPRODUCTION
Join a populated Mafia Classic instance.
The world scene loads successfully.
Player/avatar initialization begins.
VRChat sometimes unexpectedly closes.
Frequency: intermittent. Both empty and populated instances have also been entered successfully.
EXPECTED
The client completes initialization and enters the world.
ACTUAL
The client crashes to desktop without an error dialog.
CRASH EVIDENCE
I captured two crashes on October 18 and October 20, 2026.
Offline analysis found the same complete 22-frame native call stack in both dumps:
UnityPlayer.dll version: 6000.0.67.6863
Exception: 0xc0000005
Fault offset: 0xb11b2d
Invalid read from address 0x58, with R13 = 0
Call chain enters UnityEngine.Animator::Update_Injected with zero delta time: Animator.Update(0).
The final log messages in both cases concern remote avatar limb initialization. No Udon runtime exception was recorded during the failed entry.
The specific Animator, avatar or world object responsible has NOT been identified. The last avatar mentioned in the log is not a confirmed cause.
ENVIRONMENT
VRChat 2026.3.3p2-1921-15c4a824b2-Release
Windows 11, build 26200
Steam installation, Direct3D 11
NVIDIA GeForce RTX 3060 Ti, 8 GB VRAM
32 GB RAM
Crash dump, full logs and detailed analysis were submitted privately through support ticket #745343.
Could you investigate the native Animator.Update(0) crash path and advise what additional diagnostic information would help identify the trigger?

October 20, 2026

DragonAsh

Which future release will this be? I keep seeing people drop out of my world

MalwereWolf

Yeah this has been driving me insane. VRCDrama Court and Murder 4 have been affected by it for me.

Luvdelic

Additional report: same crash bucket, 4 users, one world, one evening

We run a weekly group event in our world and hit this crash on multiple PCs during our first large event on the Unity 6 client.

World: The Bar EXODUST, group+ instance, capacity 40

Client: 2026.3.3p2-1921-15c4a824b2 (Unity 6000.0.67f1-DWR)

Date: 2026-10-25 22:30–25:00 JST

Crash signature (Windows Reliability Monitor), identical on all checked PCs:

UnityPlayer.dll 6000.0.67.6863, exception c0000005, offset 0x0000000000b11b2d
Bucket ID: 766c1fa51efc85364d935189e381e1a7

Affected users (all different machines):

User A: i9-13900F / RTX 4070 Ti / 64 GB / Desktop (crashed 4 times in one evening)
User B: i9-13900F / RTX 4080 / 64 GB / Desktop
User C: Ryzen 7 5700X / RTX 3080 Ti / 32 GB / VR (Quest 3 via Virtual Desktop)
User D: separate PC, same bucket ID confirmed

Pattern in output_log (same on every crash):

Join an instance with roughly 16–30 players
Many "Avatar is Ready, Initializing" lines in the same second
"Waiting for players to network ready"
"[TextureManagement] Over cache size but failed to find any textures to remove" (several times)
"Initialize Limb Avatar VRCPlayer[Remote] N False 1" for several remote players
The log ends and the client closes. No managed exception is logged.

Time from join to crash: about 8–12 seconds. Retrying sometimes succeeds.

Users who had avatar display limits off (Safety Level: None) seemed to be affected more.

Timeline:

2026-09-27: event with a similar crowd size on the pre-Unity 6 client, no crashes
2026-10-25: first large event on 2026.3.3p2, repeated crashes during joins
We made only a trivial world change in between (two TextMeshPro labels). We removed it and reviewed the world, and found nothing related on the world side.

_tau_

Merged in a post:

PC client (Unity 6, build 1921) crashes in UnityPlayer.dll (c0000005 @ 0xb11b2d) while joining a busy world

messeth

Since 2026.3.3 moved the PC client to Unity 6, players crash to desktop while loading into our world, After Dark Club (wrld_3edb543b-bd8e-4ae0-8592-93678bc62456). It happens several times every busy night. Players' logs from before the switch show none of these crashes.

CRASH SIGNATURE

(Windows Reliability Monitor on an affected PC; no Unity "Crashes" folder was written)

APPCRASH, VRChat.exe 6000.0.67.6863
Fault module: UnityPlayer.dll 6000.0.67.6863 (timestamp 6ac55b52)
Exception code: c0000005 (access violation)
Exception offset: 0x0000000000b11b2d
Bucket ID: 766c1fa51efc85364d935189e381e1a7
Client: 2026.3.3p2 build 1921, Unity 6000.0.67f1-DWR, Windows 11 26200, RTX 4060 Ti 8 GB, 32 GB RAM, SteamVR

WHEN IT HAPPENS

(the victim's own output log; it ends with no exception)

"Entering Room: After Dark Club" at T+0.
"Room instantiate took 4.95s", then "Spent 8.77s waiting to discover master client". Mirror shader warm-up ran during that time.
At T+10, "Spawning players" -> "Finished spawning players" (16 players). Avatars initialise, and the world's Udon Start() methods run in the same second.
The log ends at T+11, mid-load, after "Initialize Limb Avatar VRCPlayer[Remote] 1". The local OnPlayerJoined never fired. No video player had opened a URL.
Other players see "Player X did not receive initial data in time, forcing spawn" at about +15 s, then the player leaves at +25 to 40 s.

HOW OFTEN

(counted from the master's logs; "crash-retry" = a player who leaves within 45 s of joining twice within 10 minutes)

2026-09-28, Unity 2022.3.22: 384 joins, 2% left within 45 s, 0 crash-retries
2026-10-02 to 04, Unity 2022.3.22: 483 joins, 3% left within 45 s, 0 crash-retries
2026-10-12, Unity 6000.0.67: 107 joins, 16% left within 45 s, 4 crash-retries
2026-10-16, Unity 6000.0.67: 204 joins, 11% left within 45 s, 9 crash-retries
2026-10-17, Unity 6000.0.67: 171 joins, 11% left within 45 s, 4 crash-retries
2026-10-20 to 21, Unity 6000.0.67: 224 joins, 23% left within 45 s, 9 crash-retries

WHAT WE KNOW ABOUT IT

It scales with the instance's crowd. Short stays were 8-9% at 5-14 players, 17-19% at 15-24, and 29% at 25+. Later in a long night, most joiners take more than 15 s to load.
It is not one PC or one save. The same player crashed 11 s into a rejoin after playing 5.5 hours in the same instance that night. Others crash 2-4 times in a row, then get in.
It is not the video player. No AVPro URL was opened before the crash; our stream now starts 15 s after the join.
We already lightened the join. We reduced per-player networked objects from 66 to 6 and delayed the stream. The crash rate did not change.
It is PC only, as far as we can tell. We have no reports from Quest.

WHAT WOULD HELP

Symbolicating UnityPlayer.dll 6000.0.67.6863 + 0xb11b2d to name the crashing function, so we know what to avoid in the world.
Whether this bucket appears in your crash telemetry for other large worlds.