Error message on bank reconciliation: Record has been modified by another user.

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Hello,

I'm hoping someone can help me with this issue. There is a deposit that, believe it or not, goes all the way back to 2016 on our bank reconciliation in Sage 300. I have attached a picture file showing the bank reconciliation and error message. The message says that "The record has been modified by another user." I'm not sure what was done to the record because it was done prior to my joining the company. I have tried everything, including reversing the various individual entries that make up this deposit but I cannot clear this from the bank reconciliation. I have thought about trying to somehow delete this but I don't want to make the problem worse by creating unintended issues elsewhere in Sage. Does anyone know of a way to get this cleared off the bank reconciliation in a safe manner? If it requires removing/deleting/voiding this transaction from the system I'm okay with that as long as it doesn't create errors elsewhere in sage.