I am Not surprised that ABers are having problems trying to Edit Profiles.
Some months back I failed to have AB accept a new email address, so I left the original one stand as it was, purely so that I could receive notifications of replies to 'Subscribed' items. The old address is still functional, but is Not used as my primary one.
Incidentally, for some unknown reason, my Profile records my username as being my 'Favourite Food'. Try, as I have once again today, correction of it is pointless because, after submitting a correction, the page returns to its erroneous state.
Hans.