Lost licenses cannot be selected for recovery via My Esri

Problem

When attempting to recover lost Esri licenses, selection is not possible on my.esri.com.

Cause

The customer has 2 activations (for example, 1x license and 1x 11 licenses) on the same machine. Logically, you can only reset all or no licenses for one machine.

Solution

Reset all licenses of the affected machine as a whole and then reactivate them