What do you do under banking if transaction disappears and you are unable to find it

Did you look in Excluded?

If not there then do what we ancients do. Enter it manually. Surely you have some record of a sale that leads to income or a receipt that points to an expense.

Thank so much! I will enter it manually but wasn't sure if it would mess up the books somehow and yes I did check the Exclude tab but just cant understand where it went :)