As of today I believe Idle animations have stopped caring about to if the Idle had End frame or not I believe this was intended to fix a bug where if you didn’t have looped Idle anims it would just stop playing the anim entirely and I am unsure to was that intetional but now nomatter the animation it will always try cycling between anims when anim would end nomatter if its looped or not.
Whilst example is not the best there can be animations that are just intended to be constantly looping rather than switching between base and alt variant
Expected behavior
For Looped animations to not initiate cycling(if they don’t have a “End” frame) through the anims as whilst some alt idles are as a chance some animation related stuff could be just as a actual alternative version which shouldn’t switch and stay that way.