I have been gone for some time from Koohi.com and the layout has changed since then.
I just went through a huge review of 1000> cards and I went trhough them in the study page. It's been 2 days and I don't know how to get them out of the "restudy" page. I assume it does so automatically but I didn't want to waste time if I were to be incorrect.

Do I just wait? Thank you!

On the left side of the study page, there will be a review button if you have cards in your failed stack. If you added cards to the 'learned list', there will be separate review buttons for the learned cards and for all your failed cards together.
I think you have to review them in this way to get them back in your SRS. Just adding them to your learned list isn't enough.

OK, so I have 804 in the learned list and 658 in the restudy list but I only have 1026 cards in total. So I guess there has to be some kind of overlap. Thank you for you help!