Reconcile check box issues

ronmarr

Quicken H& B 2017 and 2020 when trying to check off a item as cleared when reconciling a checking account, the check box won't stay "checked" and the entire reconciliation window shrinks to a tab under the main screen. Usually takes 4 to 6 attempts in checking the item as cleared before the tick in the check box stays checked and the reconciliation window remains open. Typically 1/3 of the transactions required multiple "check" attempts before the item remains "checked".

Sherlock

I suspect Quicken is interpreting your mouse click as a double-click.  I suggest using the up and down arrow keys to navigate the columns and the space bar to check or uncheck the transactions within the Reconcile window.