Bugged addons after I put characters for sale

Hi. I have a question for you. I put a character up for sale in the warmane market, at that moment when I log into the game for one of my other characters, my addons (Skada, BLT, ...) are bugged. They are not visible, nothing can be done with them, even if I change the profile or create a new profile. The moment I withdraw the character from the market and the character is back in my game account, the addons are working again. I've sold some characters before and never had this problem. Could someone please advise me? Thanks.

Edit: Just to add. The figure I'm selling is the second newest one created this year. I've had the other characters for a few years now. In the main menu, where I can edit addons for individual characters, I have the item "Load out of date Addons" checked. I removed the character for sale folder from the WTF folder. I cleared the Cache folder.

I mainly want to avoid having to delete the whole WTF folder (mainly because of the WeakAuras addon...)