Script shapekeys modifications not working on WEBGL

I have a model and a script that takes word phonemes and translates them into shapekeys. It works perfectly in the editor and other build methods, but in the WebGL build, while the script triggers, my model doesn’t animate any of the shapekeys.

I noticed that I can only animate shape keys in the WebGL build using Unity animation system, I tried disabling all the mesh optimizations on the build presets but nothing, tested on 2022 LTS and 6000.

Hello,

I’ve tried looking for similar issues reported but I couldn’t find anything relating to the issue you describe here.

I would like to ask you to report this issue via the Editor Bug Reporter and send us the project, this would greatly help us out in figuring out what’s happening and testing the issue and perhaps fixing it faster.

Please do the following if you do decide to report it:

  1. Open the Project where you encountered this issue
  2. Reproduce the issue to verify it’s still happening
  3. Open the Bug Reporter from the toolbar (Help → Report a Bug…)
  4. Describe the issue and the steps necessary to take to get the reproduction (From opening the project to getting the bug)
  5. In the description also add the link to this Discussion thread

And once again thank you in advance if you do decide to report this issue!