Compass Calibration in V 1.3.44 build 1.1.6240.11550

#### Issue details
The compass calibration setting offsets fails with the current build of 1.3.44

#### Version
V 1.3.44
Windows 7 x64

#### Platform
[ ]Pixhawk
[ ] Copter

#### Airframe type
H4

#### Hardware type
Pixhawk with external Ublox compass. Failure is consistent on 5 vehicles, ran the calibration on version 1.3.38 and the calibration worked fine. Very confident it is a software issue.

#### Logs
No Logs available.

Start by reproducing the compass calibration setting-offset failure in Mission Planner 1.3.44 on Windows 7 x64 with a Pixhawk and external Ublox compass, then compare it with version 1.3.38. The issue provides no source file, test, log, or precise expected behavior, so identify the calibration entry point and capture enough evidence to define a reproducible fix.

Written by the indexing model from the issue text.