I can't change information about Snap azaharplus-emulator

I’m having trouble changing information about the azaharplus-emulator Snap. Even after adding several items, when I try to save the information, I get the error shown in the image. Of all the Snaps I have, only the azaharplus-emulator has this issue.

I don’t know if this will resolve itself over time, or if I really need outside help.