nope, I have no background image. It's just disapearing image then I'm scale it to "-", for reversing, or then making mesh generate function. And it's disappear in main screen (setup and animate) in preview mode I can see this image (reversed I mean, but mesh generated not, it disapears totally ).
Sorry can't write video at this moment...
And I make the same step as usual, then spine was 3.6 or 3.5 versions, and then everything worked fine