Bug* After building for android player wont close

System Ubuntu 18.04 LTS

2019.3.0f6 - Replication..

• create a scene simple or complex
• change environment to Android
  
• Build
• Try to close engine it wont close.

I am not complaining just trying to help find a few bugs in the system. Kill process sucks haha but try that out let me know if there is a work around would be nice to build then just close after. -Levon

Edit*
Dropping back down to 2019.2.2.0f1 to see if the problem exists.

• Ui is messed up when scrolling in scene it makes the top toggles disappear
• Couldnt test build due to AnimationMode does not contain a definition for 'GetCurveBindings'

Edit*
Dropping down to 2018.4.16f1 (LTS)(Experimental)

• seems as though 2019.3.0f6 is the best bet

My guess why the engine wont close after a build is adb is locking it up. -Levon