GVis Thank you for posting the screenshot! Now I understand what your problem is. If you just bind the image (mesh attachment) in the Weights view, it may not follow the bone, what is important is that the vertices you want to bind to bones actually have weights for the bone. You can check how the weight is set by enabling the Weights tool:
Clicking on each vertex allows you to check the percentage of the weight that vertex has. The vertices all have weights that add up to 100%:
There are various modes for changing the weight, so please refer to the Weight View page of the user guide:
https://esotericsoftware.com/spine-weights#Weights-tool