Again, I'm not sure what to make of this. I've been running my version of TaskPaper for last few months with a custom stylesheet and haven't had it ever switch back to default...
Except sometimes it appears to switch back to default. But in every case that this happens it's because I've launched a different version of TaskPaper. I think maybe this is the issue? There are two versions of TaskPaper, Mac App Store and Direct download. They have different bundle identifiers and so have completely separate preferences, stylesheets, etc.
Normally I use the direct download version, and that's where I have my custom theme set. But sometimes I'll accidentally launch the Mac App Store version (which I also have installed) and when I do that it will load up the default stylesheet.
This might also happen if you have an older version of TaskPaper 3 installed. If you are experiencing this problem can you try:
- Make sure that you've deleted all but on instance of TaskPaper.app from your computer.
- Try to reproduce the problem again