No Animation data for avatar despite having humanoid rig/correct bones

Hello, I’ve been at this for nearly 3 or 4 hours and I still can’t figure out what’s going on. I imported my model from blender using the CATS plugin (it was an MMD model originally, so I had to fix things and merge materials beforehand) and prior to making the optimized version it worked perfectly fine and was animated in play mode and everything. Now, importing the optimized version (the version in these pictures) I am getting the message that my avatar has no animation data even after I double checked there’s an animator component, the SDK is there and in the right place, the rig is humanoid, the bones are all correct and everything SEEMS good to go. I have no idea what went wrong and would appreciate any advice.