This happens most of the time on LAN worlds with 2 players. When the launcher is also open at the same time, it does not close the launcher, and does not show a crash report.
Comments 8
Please force a crash by pressing F3 + C for 10 seconds while ingame and attach the crash report here.
Please attach the complete output of the "Development console" of the launcher. CTRL-A, CTRL-C there, CTRL-V in the ticket.
OK, I will follow those directions. As of now I am reporting this bug from past experiences, it did not happen right before I posted the bug report.
No mods installed, completely vanilla.