The issue has been fixed. The fix will be available in the next release.

That was quick! Thanks for fixing it!

I also tested your suggestion with Movable Proxy in the current version and it completely solved the bug in my scenes. The aperiodic problems with motion blur too. So it's very likely ...

First I want to thank the devs for creating and maintaining the Blender Plugin!

I found a critical bug for animation production: Using linked collections from source files and rendering with “Render Animation” (Ctrl F12) causes the linked meshes to disappear on the second rendered frame. With F12 ...