When you launch it on Steam, is the Bungie Name shown the same displayed on the character screen 'varg#7243'?
Deactivating cross-save then reactivating it later could fix it, but it's not a guaranteed fix - it would also come with the cooldowns. Your current silver purchase cooldown and then a further 90 days to reactivate after deactivating.
One of the BNGHelp accounts should be able to weigh in later on once they're in the offices (roughly 8/9 or so hours from now) and they should be able to check the cross-save setup you have to say if any accounts aren't properly linked.