Just jumping in with this, which while I'm sure has been posted a few times before and the thread is a little old might still be helpful for new people viewing this board: https://subeta.net/repair_avatar.php
This fixed my broken HA image issue (and the blank page issue which followed a few hours later) and as far as I know is especially important as a troubleshooting step for people returning to Subeta after some time away to try, as things have changed in the meantime.
I've been looking at the wardrobe updates on Tumblr and while there's been nothing new in the past 5ish(?) weeks what is being worked on looks very nice. I'm not a huge HA person but between the repair and jumping browsers when needed I'm managing when I do want to change, though admittedly I don't use the salon ever. More functionality for the drawers is my number one desire (have category 'none' actually show things with no category only, deletable drawers and mass remove) and when changing item drawers clicking 'update items' gives me a 504 error which refreshing doesn't fix but hard refreshing does (though thankfully the changes still go through).
Just a bit more time and patience on our end (I know we've given a lot) and a little more communication from staff (I know you're trying your best), and we'll have a much more painfree transition to the new wardrobe system. Keith, team and mods, if we can ever help you let us know how - I spend a lot of time here and would love to help in any way I can, and I'm sure lots of other people feel the same.