Hello there, sedbrhx.

Just a heads up, when you condense your company file, it can't be undone. If you use Condense to repair the damage but are unsuccessful, you only have two options. It's either restore a backup company file or create a new company file. 

We have a new Condensed Utility option for QuickBooks 2019 version. You can reduce your file’s overall size and still keep all your data and details. For more details, you can use this article about Use the Condense Data utility. 

If there are features that are greyed out when you reconcile, you can run the Verify and Rebuild Data Utility process. Then, reconcile your bank accounts again. If there's a need to fix the bank balances, I'd suggest reaching out to an accountant for the best way on how to resolve it. They may advise you to create a transaction or edit the balance. 

Keep me posted if there's anything else that you need help with. Take care!