Hello, I took a look and downloaded the latest version of blender 4.2.3 LTS and then did a clean install of the add-on. Everything seems to be working correctly however, I think the issue is that you are using EEVEE instead of CYCLES when you bake the material sequence. This add-on requires that you use Cycles. I will see about making it prompt to switch to cycles in the next update. Please let me know if this solves the problem. Thank you.
This doesn't work on the most updated version of blender or the second most. Not sure which i have. Are there other ways of generating an image sequence from an animated procedural texture?