[FujiSkunk]

If you’re using the same cache file when playing with Title Update 4 as you are with Title Update 5, strange things are bound to happen. The easiest way to avoid this is to not keep Title Updates nor cache files on your console’s hard drive, and instead keep two separate memory sticks, one with customs, TU4 and a cache built when running TU4, and the other with TU5 and a cache built with TU5.