I see this has been resolved in the beta. Is the functionality there a rollback or a fix that'll be going forward?

Following in DoctorMystic's path, I too provide a list of all my avatars that are affected by this change.

avtr_b71ca28e-3635-49d9-8b68-74e4dd8e25fd,Njna Grimsdottir - 2025 ULTRA

avtr_84981e6f-4538-42da-8118-5d76cb222502,Gyo Grimsdottir - ULTRA

avtr_0031e28b-e669-4fd0-86f5-d15a2a73c687,OPTI- Gyo Grimsdottir

avtr_19c55d1c-3b19-4dde-87a6-41bfb4dc51a8,Hana Grimsdottir

avtr_a3b696e3-cf4f-4a5e-99e5-b29d035e4546,Nama Dottiesdottir 2025 - DanceBunny Edition

avtr_ed3295ea-abb4-45ea-a2c8-cf060a999ec6,Shrimpina Dottiesdottir

avtr_91114454-8609-4ae4-8ddb-f550f89c9276,Nama Dottiesdottir 2025

avtr_1e07bb7a-8c21-43fa-9a41-78a26641bfeb,Njna Grimsdottir 2025 - Chained v2

avtr_78662a21-3977-4869-9b0a-bad45a0dc5aa,Njna Cherry MYTH

avtr_2e3374eb-de4f-47eb-8028-423e2f8ea091,3Vee Fluxsdottir

avtr_b0d7eced-cba5-440b-a01a-b4d190a339e6,Njna Koiwisdottir

avtr_a0670489-397d-4c81-b0ff-5dc4bee5210a,Naughty Dottiesdottir

avtr_309376c5-9cfa-400c-b9ae-556c073b6746,Meido Dottiesdottir

avtr_61ae2d44-2113-499e-9a0a-d2653a2f4dc6,Suka Dottiesdottir

avtr_8dec46f4-5c30-4259-9033-424496978668,Njna Grimsdottir (Caster)

avtr_437fb72f-108d-465a-a83b-50feb1e79bed,Bee Dottiiesdottir NODPS

avtr_9ec703ac-192c-4e9a-a585-f039c85a5eaf,Bree Dottiesdottir

avtr_83aa604a-e369-46c0-8413-eaffbf5234ce,Jingle Daisysdottir

avtr_b1141518-3ee0-4650-a9c0-9a7117388ee7,Cherry Koiwisdottir 2025

avtr_ec9c1a7e-f1cd-4df0-8be9-dbe1be4b3525,Harmony Pursusdottir

avtr_ce013a22-1f51-4cf2-af08-c9c10d3eaa52,Njna Grimsdottir 2025 - Chained Queen

avtr_5d0dfeec-a128-4f94-91e0-21b81e91277a,Haze Bunnisudottir

avtr_c0a544d5-5f27-47cf-a476-57237cc8806b,Bones Daisysdottir

avtr_fd6e44de-9ef5-438e-8659-95cb44d279e8,Nari Weekesdottir

avtr_d3a45129-8d3a-46e0-9735-a4de260c2d5b,April Weekesdottir

avtr_e0d7f217-3181-414f-9bcf-d4a600b5eaa6,Kandy Weekesdottir

avtr_f16ae22b-04ed-46f0-91b7-a5a9536bf05a,Kichi Weekesdottir

avtr_0ee5c7fa-acb1-4358-a11d-faf328a16d6f,Brooke - ULTRA

avtr_fc9ec347-9fb5-40f0-b836-d0088f11e617,Lumi - ULTRA Caster

avtr_0df33b68-7098-404b-bd87-96e509987186,Mjrn - Divine Machinery Replicant

I have noticed bone issues with a few of my models. I will provide the id of my model ive noticed has been most effected which had not given me issues before the update.

Ive seen issues with:

avtr_83ef8e10-68ed-442c-b957-c5365163c43e

These are all of the following avatars I took a long while getting together just to prove a point that we all are here for;

There is a larger issue on hand than just checking some user's avatar IDs.

Here is every single avatar with physbone issues that you guys asked for, on just my account alone.

There are thousands of us.

Anyway.

ALL LISTED IDS ARE AVATARS WITH PHYSBONE JITTER ISSUES SINCE THE UPDATE:

-avtr_1ea59c09-fad7-4fea-bd88-87a75cf7399b

-avtr_fc8783c4-f606-42cb-9cb4-584d8af99b0a

-avtr_accb683e-8314-40ca-97fc-1246af401a01

-avtr_14fb854b-297e-4497-a3ca-f35fcb1985cf

Its really bad with the water flow-toys, like on this avi (avtr_811ca791-c444-4952-bf7a-07d134779736)

It makes me sad bc flow toys are my fav thing to dance with as an fbt with disabilities. They help me use my arms more and its very therapeutic to just watch them flow in time :(

The jitter is so bad that unless i make very slow, LARGE movements it just jitters and snaps around. Not fun at all.

For example with allot of my avatars, example: avtr_3687dc78-7ab0-4a6f-846e-c6a6436e110f , Her flow toys are extremely jittery and spasm whenever they stand still it's just unpleasant to look at

This issue doesn't require a list of effected avatar IDs. ALL avatars with long hair, tails, any flow toys, chains anything more than like 3 physbone segments long moves with the parent now and THEN flows after. The entire child structure moves in 3 space with the parent node and then propagtes down the chain showing nearly 0 world connectivity or momentum to move to the new location. I've tested nearly 70 avatars now to verify this. Just roll the change back until this is sorted in beta. Please.

The jittering is almost like as if the bones were trying to stay stiff for half a second.

You can see that if the issue exists on hairbones and youre rotating your head, the bones will rotate with the head for a split second instead of falling down with Gravity.

I am assuming therefore that the issue is that the physbones seem to update very slowly when moved by their parent bones.

Please make sure to always put avatar ID (public/private both works) which has issue with.

Those issue can be specific to spefic pattern of your avatars and dev may not aware it unless you put it.

If you don't put it, don't cry when not patched as you don't show example so.