Avatar Tools Tab Shows Up Blank

I have imported Pumkin Tools v1.4.1 from the VCC repository with Unity 2022, and the Avatar Tools section of the asset only shows a blank window when selected. I have done the following, in order: 1. Closed the window and reopened 2. Closed the project and reopened 3. Readded the asset completely 4. Reimported the entire project entirely 5. Tested on a separate project All other sections such as the Pose Editor and Texture Packer show up and work as intended so it's importing okay. What else should I be doing?