Could you please try resetting the preferences of Photoshop? Preferences in Photoshop
If resetting the preferences doesn't work then try unchecking "Use Graphics Processor" in Photoshop's Preferencese > Performance, then relaunch Photoshop.
Nope, won't work for me. Very annoying bug this
I'm having the same problem. I've restarted and unchecked "Use Graphics Processor". It always quits when I hit "Paste Over Frames". A great shortcut isn't working any more.
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Thanks for reporting this. We can reproduce the crash and we're working on an update to fix this in the very near future. Stay tuned.
yeah no its still happening
Yep... its June 14th 2018 and this bug is still happening. hard to make simple sprite sheet animations when the timeline is messed up. Guess ill have to dust off the ol' PS 2014... at least the timeline, copy and pasting frames works properly on that version of photoshop lol.