MikroTik hAP AC Lite Cannot 'Turn off Mesh RF'

RE: FW version 1375-812c007​

Unchecking the Mesh RF box results in an error and thus cannot save the configuration:
 

This is the 2nd ​hAP AC Lite to experience this.  The first one was running FW 1360-9d5f8a3.

On the first unit we were able to finally get the Mesh RF off but we had to do odd things to kind of trick it.  I think we had to disable everything on that config page as well as the WAN, then it finally saved with Mesh RF off.

- Mike ab4yy