I would like to use the 2d animation package, but sadly everything works besides the bone influence tool, which is greyed out. I need this tool to make bone animation work. Any ideas?
I had the same issue, because I used a .png and .psd for my sprite format. Importing the files as a .psb solved it for me.
Maybe you need to install the 2D PSD Importer from the package manager for this to work.