Between the release of TT4 and fixes for shopping cart use were applied (I think mostly issues with a token errors), many attempts to sign-up for events were failing. Some were caused by users actually trying to sign-up and others were caused by me trying to recreate the issues. What I recently noticed is that when I go to Manage -> Money -> Orders, all of those failed orders are still lingering in this list. They do not show up anywhere else as far as I can tell.
I think that the user having permission to manage money accounts, add users to events manually, etc. (i.e. the unit treasurer) needs to have access to clean-up those incomplete orders as well. I have several pages of them that should be removed with some good ones interspersed towards the end.
I also noticed that when I try to refund ALL items within an order (now that the orders work), that refund does not remove the order from the above view. I know there is already an issue with event refunds tied to orders. I just want to call out this part of the issue. My current work around for the refund issue is to manually delete the order transactions in the payor/receiver accounts (assuming everything in the order was refunded). However, I am still left with the Orders list with orders that should no longer be there or at a minimum have a status showing they are invalid/failed orders, or that they were adjusted, refunded or completed.