Hi @hrramirez,
So, very weird. I looked and looked for code that could be causing the flashing but didn’t see a thing. When I read it happens in your animation tab, I looked for an extra animation frame for the sprites but did not see one. I then deleted the original sprites and replaced all them with identical sprites in the animation tab and the flashing is gone. But, I wonder if you did the same would the new sprites still be flashing? If this has been an ongoing problem or continues to be a problem, you should contact support and report the issue.
~Michelle