I've started getting bizarre errors such as repeatedly being required to sign in when I'm already signed in (which prevented a BIN purchase as at every stage it thought I wasn't logged in although it would show me all my other info so I was definitely logged in), or being given information about a 'cancelled bid' I didn't make & being told to look at some non-existent bid history for the explanation. Another bid I had actually made, & had checked in the bid history, has vanished along with the listing - but there was no notification about that one.
Prior to this everything seemed to go smoothly for years! Is anyone else getting this sort of thing?