It seems that created a second scene make model animation impossible or bugged.
Here is a playground which showcases the issue: https://www.babylonjs-playground.com/#L0IMUD#22
See variable secondscene line 16 to observe the difference!
I even tried to use 2 different engines but the animation still doesn’t work.
Good catch! I will fix that issue for next commit!
Hello @Deltakosh,
The correction is working great in the playground above. But this is still not working in my project after the babylonjs libraries update (v4.1.0-alpha.1). I can’t find what is wrong as I do the exact same stuff like in the playground.
I know this is very unlikely but is it possible I don’t have the correction since I use @babylonjs/core package?
This is the case. I haven’t updated it yet 
(I mean the npm package)
Cool, can you tell me what is the frequency for the updates for these packages? Just so that next I wait the time needed before testing again. 
usually every two weeks (faster when close to release, slower at the beginning)
Ok I will keep in mind “no rush” to make the update. Every two weeks is perfectly fine.