Hi Landiin,
I am also having the same issue with the error that pops up about unable to write the ui_settings file and the pop-up writing that looks like blocks. I get this when I 'quicklog' a lot. It doesn't seem to happen to me any other time.
Might want to search there. Maybe it's not allowing enough time to dump the cache before opening up the other characters.
Just my 2c worth
