15810190183 Thank you for your feedback! Have you tried Spine 4.1 or later versions? The workflow for reassigning weights in such cases is much improved in 4.1. Not only has the ability to lock weights been added, but also the ability to swap weights between two selected bones. In addition, 4.2 allows copying and pasting of weights, so if you are using an older version of Spine, please try the newer version.