Im playing Forza Motorsport 7 on PC with specs much higher than the required ones to run the game, i can run it smoothly with low temps so that shows there is no strain but 99% of the time the game crashes on the black screen on showcases after accepting credits and exp, the loading wheel in the bottom right hand corner loads for a bit than freezes, audio stops and shortly after the game crashes, can i fix this? also another issue is about 80% of the time when launching the game it gets to the screen where there is a little rectangle with the porsche, the driver and the forza motorsport 7 logo, than it all of a sudden just closes, i came upon a momentary fix for it a while back where you just have to install something from the windows store, so i just uninstall and than reinstall netflix, the same thing happens with forza horizon 3, i can deal with uninstalling and reinstalling netflix to get the game to launch but i hate the crash after doing the showcases, its incredibly annoying. help please 
Crashes every time when clicking Quit instead of Continue after completing a showcase.
Small chance of not crashing when clicking Continue.
That’s my experience on PC.
Also getting this on the PC. The game otherwise seems stable now, but ever since the patch back around 1/16, it crashes consistently every time I complete a showcase event exactly as OP described.
I still get the credits, XP, and am awarded the car from the event next time I login, so I’m not losing anything, but it’s a little irritating to crash to desktop after each one.
Similar to OP, my machine is within the required specs (core i7-7700k, 16 gigs DDR4 ram, GTX 1080) and doesn’t seem to be stressed at all when this occurs.