The checkbox "Keep the launcher open while games are running" in settings is enabled.

This setting does not appear to work properly, however. The launcher closes while the game is being launched - apparently crashing, but the game launches successfully.

Note: Reproduction does not appear to be reliable, from my few tests it seems like there's roughly a 50% chance of whether the launcher will stay open or not.

To reproduce

1. Open the launcher
2. In the settings menu, ensure that the option "Keep the launcher open while games are running" is enabled.
3. Start Minecraft Java Edition (I did not test whether this works with Dungeons as well)

Expected behaviour

The launcher would stay open.

Actual behaviour

The launcher closes.