apart from the Issues reported several times with Stats not properly loading I somehow also managed to lose one (or more) Slots for Sync-able Characters...
could've sworn that when I started with this a week ago, I originally had 5 Chars showing on the website here... then after a couple Overhauls and reorganisation (during which I deleted at least one Char while it was synced) I'm now down to 3 Chars I can keep in sync at the same time. If i try and sync #4 I get a prompt that I had reached my max number of synced Chars. Rather peculiar!