Does this happen too when you export as image? Have you tried deleting the PyxelEdit folder like the FAQ mentions?
Windows: C:\Users\[username]\AppData\Roaming\PyxelEdit or similar. You can enter %appdata% as the path in windows explorer to find the Roaming folder quickly. Mac: /Users/[username]/Library/Application Support/PyxelEdit or similar.
Alternatively, if you're on Windows, try to run the application as administrator and see if that works.
Comments
Does this happen too when you export as image?
Have you tried deleting the PyxelEdit folder like the FAQ mentions?
Alternatively, if you're on Windows, try to run the application as administrator and see if that works.