There is no visible audit trail showing where pending transaction edits exist.  This causes a warning when the file is manually saved, but not when an auto save occurs.  It is possible to have more than one pending transaction edit at a time.

I suggest to make the register tab blink when there is a pending edit present in a register to show where a pending edit is. A weakness to this suggestion is that sometimes some tabs are not visible, so a better solution would be preferred.  Perhaps something on the bottom bar by the progress bar.
Whatever method is used to return to that register, the focus should stay in the transaction containing the pending edit.

Alternatively prohibit interrupting pending edits altogether by requiring the edits to be accepted or abandoned before leaving the transaction.