Anim Notify is not working in migrated animation sequencer

Development Character & Animation
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1

Hi,
I am using the Engine for cinematic sequencer. Now I am using 4.18, but I like to update it to 4.19, since its copying and pasting tracks feature.
I migrated assets to new 4.19 project. The issue is the particle effects as anim notify the animation sequencer contains is not working. There is still notify mark on the sequencer, but it’s not appearing. There is no detail for the notify, even I select it.
As I test, once I migrated assets, it always has same issue, whether I copied files to same version or any other versions.
I guess that once I copy or migrate assets, the blueprint class can’t recognize its parents or child in new project.
it is same issue with materials. After I migrated assets with materials, New project cannot load instant materials

Is there any solution for this?

2

Well… we have 5.4.3 now and it is 7 years later and this issue is still present! I would love to have a fix too for this since it is very annoying and time consuming to fix these when you have hundreds of animations.