Good job on FigJam, I like it so far and have started using it for collaboration settings with non-designers (read: people who aren’t experts in these types of interfaces) which is a great sign.
I’ve noticed a bug(?) when I pull an image onto the board that I want to use for “canvas” style activities. I’m able to lock it so I don’t accidentally move it around. HOWEVER, when I have stickies on top of it and I try to quickly duplicate the stickie with the “option” key - it often grabs the canvas beneath and tries to copy the canvas. It is extremely annoying!
Make sure that when an image is locked, its also not possible to duplicate it with option-drag.