Animation player not playing animation clips for first time

[nezvers]

Tested versions

• Reproducible in 4.2.2 stable, 4.3 dev6
• Not reproducible 4.2.1 stable

System information

Godot v4.3.dev6 - Windows 10.0.19045 - Vulkan (Forward+) - dedicated NVIDIA GeForce RTX 2070 SUPER (NVIDIA; 31.0.15.5186) - Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz (8 Threads)

Issue description

Visually it looks like it's stuck on the first frame until something happens (loop, other animation in tracks triggers - not in our production).
At first I thought that freeze happens for each first animation from unique AnimationLibrary (wasn't like that).
In reproduction project that happened only for the first clip. I tried to duplicate a node set and trigger next animation and create a node set from scratch.

Steps to reproduce

• Create animations
• Trigger those animations from master AnimationPlayer's animation track

Minimal reproduction project (MRP)

Animation clip animations.zip

[TokageItLab]

Should be fixed by #90960, please check if you can.

[matheusmdx]

I can confirm the pr #90960 fixes this issue

v4.3.dev6.official [89850d5] (look in the first seconds, nothing happens)

unknown_2024.06.10-01.15.mp4

v4.3.beta.custom_build [5833f59] (now play the first animation correctly)

unknown_2024.06.10-01.13_1.mp4