When I switched my project to 4.19 from 4.18, the first half of morph animation of my skeletal meshes stopped playing while the last half is playing fine. All the morph targets are there (160 of them) and I tried migrating it from 4.18, reimporting it and changing settings, but nothing worked.
Edit:
Might has something to do with Import bone tracks, it is a new option and the morph anim stops working completely when I disable it.
I have the same issue but only 10 of the 160 work,and all are at the bottom
4.18 to 4.20 , i stepped backward into 4.19 and still have same issue
reimporting from root fbx does not work.
Found a fix - we turned off Use GPU for computing morph targets (its set to on by default)
this is new in 4.20 and possible 4.19
Thanks Dragonhill, that worked.