Hello,
1. Thank you very much for the bug report. Such bug reports are very important for me; sometimes I get so less bug reports that I get worry :) Really thank you.
2. Yes you are right it’s a bug. I redesigned the FileDialog and the naming and didn’t set the pointer anymore, so it was NULL. I fixed this.
3. Also, already in the older version forget to rename the function and was loading with the old file format from the start but was saving with the new one. So this was also incompatible -.-. But until now nobody reported this but. So thank you. I fixed it.
So I will need to do a few other things before releasing a new update so it will take a while, but with the next update this will be all fixed.
Kind regards
Union Bytes