I have "6303 classic" phone and such annoying bug in the 'Go to' menu: when I try to add my own installed application to it (from 'Application list') this takes a long time to proceed and in the end I see blank screen with no applications. Then phone 'freezes' and only battery re-connecting helps.
Reset to factory settings helps for a some time and this bug vanishes. But after a month this bug happens again. Firmware version V10.10. Please, fix this bug.