Steps to Reproduce:

Note! This seems to be only one of multiple different ways to produce this issue. 

1. Open the launcher
2. Start the game
3. Waiting 'til the launcher closes to run the game
4. Again open the launcher, before the Minecraft instance pops up
5. Now you're having the bugged state of the launcher

Observed Results:

For macOS, sometimes, the launcher is not registered to be open/launched (often/mostly after the game has crashed). Then the icon doesn't show, that the program is open, the icon does not push the open launcher window to the front and shortcuts like [command] + [q] won't work properly.

The launcher is in between the state of open and not open. This leads to major problems in using the system properly, while the launcher is open.

Screen-Capture of bug caught on camera.mov

Expected Results:

Launcher not being in an buggy state