1. I've upgraded my Wine runner to wine-tkg-mainline (manually compiled) and it works like a charm, no need to use the ancient 9.0 runner.
2. The launcher's doing something funny and wineserver is quitting due to bad memory allocation (runs out of virtual memory), this is bad because if wineserver quits everything running on top of it does as well, including the game. Two ways I've found to bypass this, you can close/kill the launcher altogether or alt-tab back to the launcher after running the game, and then back at the game. You might notice the launcher looks greyed out after running the game and clicking back at it won't do a thing, so that's a hint about something off going on, if you leave it like that wineserver will exit after X seconds due to running out of virtual memory, once the launcher responds again the problem disappears and nothing quits.