Gee wiz, that's one bug I never heard of before, but that does remind me of the UltraHLE spaces in filename bug, if the UltraHLE directory name contains any spaces, UltraHLE will fail to respond and appear to do nothing by the GUI not coming up at all and if the ROM directory and/or the ROM file name name contains any spaces, when you attempt to load the ROM, UltraHLE will display "Error loading".