This has been a recurring conversation for years. When you make a journal entry between two cash accounts, the record can only hold one status—Open or Cleared—which impacts both cash accounts during the bank rec process.
All our procedures address how to do this successfully. An alternative has been two entries to a clearing account, but we encounter issues fairly often.
Sage has come up with a Transfer Option. From the 1-2 screen choose Options, then Transfer Cash. Fill in the fields and the two records will be made for you; might be worth a try. –CMW