To Reproduce:
- Open a new unity project
- Install "Android logcat" from the package manager (windows -> Package Manager)
- Open the build settings (File -> Build Settings)
- Switch target platform to android (Android -> Switch Target)
- Open the android logcat window (Window -> Analysis -> Android Logcat)
- Go back to the Build Settings and change the target to "PC, Mac & Linux standalone"

Expected result:
The logcat window should close

Actual result:
The Text Disappears

Platforms tested:
Windows and Mac

Affected versions
2020.1.0a14, 2019.3.0b12, 2019.1.0a13

Unaffected versions
2017.4.30f1, 2018.4.12f1

Note:
Versions before 2019.3.0.a1 doesn't support android logcat