5.6. I'm getting strange errors when I change layouts; what's wrong?

Those errors show that there is something wrong with the layout files themselves. This means the files were corrupted, edited incorrectly, or for some reason QJoyPad didn't save them right (shouldn't ever happen, never seen it happen, but nothing's impossible). Unless the file QJoyPad is looking for is completely missing or mangled, it's quite likely that the file can be repaired by hand. If you need help with the save format, just send me an email <wren42@users.sourceforge.net> and I'll see if I can't help.

If worse comes to worst and you lose a layout file you created, it shouldn't take you too long to rebuild it from scratch.