Clicking on a frame highlights it but doesn't actually select it.
The Previous Frame/Next Frame buttons seem to work correctly, although the error still appears.
If the file is saved and reopened, all cels are missing (not sure if related).
Edit: cels only disappear if they're blank, which is probably intentional. Sorry about that.
Error when selecting frame (in any way) or opening file: http://pastebin.com/fushN6Pe Error when using arrow keys: http://pastebin.com/6Yu8VDAA
Clicking on a frame highlights it but doesn't actually select it. The Previous Frame/Next Frame buttons seem to work correctly, although the error still appears.
If the file is saved and reopened, all cels are missing (not sure if related).
Edit: cels only disappear if they're blank, which is probably intentional. Sorry about that.