Actions tab Arm/Disarm button freezes MP

#### Issue details
When arming using the "Actions" tab. Mission Planner locks up. It also will re arm after disarm delay has been reached multiple times. Probably related to "Force Arm" change

#### Version
1.3.64

#### Platform
[ ] All
[ ] AntennaTracker
[X] Copter
[ ] Plane
[ ] Rover
[ ] Sub

#### Airframe type
Quad

#### Hardware type
Pixhawk 2 Cube

#### Logs
N/A

Reproduce the issue in the Mission Planner Actions tab using the reported Copter, Quad, Pixhawk 2 Cube, and version 1.3.64 details, focusing on Arm/Disarm and the Force Arm change. Investigate why Mission Planner freezes and why arming repeats after the disarm delay; done means the button remains responsive and no unexpected re-arm occurs.

Written by the indexing model from the issue text.