Animations not saved to VRM export

I recently discovered that animations are not exported to my VRM files. I am animating game characters and usually the only thing I use animations for are eye blink.
Everything works in Unity but when I export the character in VRM format, the animations are not playing. To troubleshoot I re-import the VRM file back into Unity and see that the Controller is set back to 'none..'.
I am using uniVRM-0.98.0, but not sure if it is a problem with that version, although this started around the time I updated to it..
If anyone has some tips on how to troubleshoot this, I would be grateful. I tried so many things and am at the end of my limited knowledge..

Gunnar

 

Although VRM is a format based on glTF-2.0. UniVRM does not animations as opposed to UniGLTF,
https://vrm.dev/en/gltf/index.html