When I left click on a pic the commands box comes up
but none of the commands work!
Unfortunetly I did not find a fix for the missing menu items in display. Fast Google search shows it is not unique but had no time to deal with it. I have submitted 6.5.6-6 version. It has the same issue but all command like tools work fine. Just see 6.5.6-7 is released. Unfortunately there are releases in every 3-4 days
As an alternative submitted
GraphicsMagick which is pretty similar to ImageMagick but smaller and faster. And yes, this menu is working. Try when itt will be available in the TCZ repo.