We changed from a nonprofit to an LLC so I needed to move a bunch of accounts around and every time it says the things were already reconciled and I have to backtrack.  I thought it would be cleaner just to start from scratch but I hate to lose the transactions - just wanted to re-reconcile after I made the changes. I think I deleted things in a closed period and ignored the warnings and now have a mess.  You're right, I should have just reassign the accounts and split as needed but it is too late for that unfortunately.