@imdjs Hi, noticed this issue. If I pin the legs and move the pelvic/rootbone with F, the right leg resets. I am not sure if this is from the Blender file.
This seems to happen if you move the the joints using FK with the rotate tool. Only the leg seems to reset to the last position moved with pressing F. I think it may be from the file tbh.
Also great work with the addon. I think this is by far better than freeik imho.
Another useful feature would be if we can move multiple Ik bones at the same time after presssing F. Maybe a way to select multiple bones and pin them at once when you press the pin button and also to unpin. 