ROM Hack [help] kukkii unable to save my progress on my textures.

[Aaronloll]

i was just saving my textures then saved, then the saving progress in kukkii was taking too long so i exited out of kukkii, then when i tried opening my texture with kukkii again this text showed up,
"system.io.endofstreamexception: unable to read beyond the end of the stream"
showed up, i also found that the saved textures were 1 kilobyte only... Any fixes for this?