Steps to reproduce:
1. Open attached project
2. Go to Edit/Project Settings/Quality and make sure Shadows are disabled
3. Build WSA Universal 10 or Universal 8.1 SDK
4. Open VS solution
5. Deploy on Microsoft Lumia 550/950/950XL device
6. Observe the crash on launch
Alternatively enable shadows and repeat steps 3 to 5 - the application won't crash

Expected result: application doesn't crash on launch when shadows are disabled
Actual result: application crashes on launch when shadows are disabled with an exception:
Unhandled exception at 0x6AB234DD (qcdx11um8994.dll) in Lumia950Issue.exe: 0xC0000005: Access violation reading location 0x00000018.

Reproducible with: 5.5.0b1, 5.5.1p3, 5.6.0b7

Also see: tester notes in the edit, callstack and output files attached