The architecture difference is probably what is causing the regions not work with the Anima model or it is yet to be implemented. The closest what i have found for region mask conditioning is the https://github.com/Haoming02/sd-forge-couple which supports anima. Probably could be referred to for implementation.
I have tried porting the same implementation in comfyui as a custom node (using AI) and it gave mediocre results (probably im not doing it right).
doesnt seem to follow the region prompts or rather it completely ignores it

This is what its supposed to generate or something similar.
The architecture difference is probably what is causing the regions not work with the Anima model or it is yet to be implemented. The closest what i have found for region mask conditioning is the https://github.com/Haoming02/sd-forge-couple which supports anima. Probably could be referred to for implementation.
I have tried porting the same implementation in comfyui as a custom node (using AI) and it gave mediocre results (probably im not doing it right).
doesnt seem to follow the region prompts or rather it completely ignores it