Can't Launch FH4 Demo OR FH3

Below is the error I get when trying to launch FH4 Demo. I also get the same error launching FH3. I’ve tried resetting the store. And all the other quick fixes like installing another app etc. Nothing at all has worked over the last year of not being able to play Forza. I’m not sure what to do anymore. A clean install is out of the question as I have too many things to lose just to make this game work. Any help is appreciated.

Source
ForzaHorizon4Demo.exe

Summary
Stopped working

Date
‎10/‎4/‎2018 6:58 PM

Status
Report sent

Description
Faulting Application Path: C:\Program Files\WindowsApps\Microsoft.ForzaHorizon4Demo_1.192.906.2_x64__8wekyb3d8bbwe\ForzaHorizon4Demo.exe

Problem signature
Problem Event Name: MoBEX
Package Full Name: Microsoft.ForzaHorizon4Demo_1.192.906.2_x64__8wekyb3d8bbwe
Application Name: praid:SunriseReleaseFinal
Application Version: 0.0.0.0
Application Timestamp: 5bac159d
Fault Module Name: StackHash_1e37
Fault Module Version: 0.0.0.0
Fault Module Timestamp: 00000000
Exception Offset: PCH_25
Exception Code: c0000005
Exception Data: 0000000000000008
OS Version: 10.0.17758.2.0.0.256.121
Locale ID: 1033
Additional Information 1: 1e37
Additional Information 2: 1e373e69fff075aed81f57003e66ce10
Additional Information 3: 9f0e
Additional Information 4: 9f0e095f32a88249d7a2b7eca4e322ea

Extra information about the problem
Bucket ID: 99f24323a2cc3d16d6c238603cb4994e (1639935200302766414)