The Magic Leap Plug-in under 'Installable Plug-in Providers' does not get disabled in the first attempt when using the XR Plug-in Management System.
Refer to the attached video.

Steps to Reproduce:
1. Create a New Project
2. Edit > Project Settings > XR Management > Install (3.2.x)
3. Edit > Project Settings > XR Plugin Management > Installable Plugin Providers > Magic Leap > Install
5. Plug-in Providers > Magic Leap Zero Iteration > Disable Checkbox

Actual Result:
Nothing happens on the first attempt. The plug-in is disabled the second time around.

Expected Result:
The plug-in should gracefully disable in the first attempt.

Tested on Unity:
2020.2.0a7, 2020.2.0a1, 2020.1.0b5, 2020.1.0a9, 2019.3.9f1

Occurring on Package Version:
5.1.2, 5.1.1

Working Fine on Package Version:
5.0.0

Note:
1. Magic Leap had been removed from Package Manager from 2020.1.0a1 to 2020.1.0a8
2. XR Plug-in Mgmt System UI changed in 3.2.x series which introduced checkboxes

Environment:
Windows 10 and Mac 10.15