I can confirm Z2M of v2.1.1. I can confirm that reconfiguring corrects the issue. This is surprising since I attempted reconfiguring a few times before but it was unsuccessful. Was this a fix that was part of Z2M v2.1.1? I recently applied that update and I have not tried to fix this since.
Edit: @rohan with a bit of optimism I thought to try a similar fix to my other ×10 problem (Incorrect ramp timing by a factor of ×10 (blue series dimmer)) but in this case a reconfigure did not fix the issue.