Failed to find shader map for default material WorldGridMaterial!

Development Asset Creation
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18

Unfortunately this doesn’t work for me. The cooked build just crashes on startup:

LogCore: Assertion failed: IsValid(Platform) [File:Runtime/RHI/Public/DataDrivenShaderPlatformInfo.h] [Line: 221] 

0x0000000008e1f6c2 BugsWithAfterburners!PlatformCreateDynamicRHI()()
0x0000000008e1e70f BugsWithAfterburners!RHIInit(bool)()
0x000000000bbf1b73 BugsWithAfterburners!FEngineLoop::PreInitPreStartupScreen(char16_t const*)()
0x000000000bbe30bc BugsWithAfterburners!FEngineLoop::PreInit(char16_t const*)()
0x000000000bbeaf40 BugsWithAfterburners!GuardedMain(char16_t const*)()

Also, the editor won’t start. It complains that “A Feature Level 5 video card is required to run the editor.” I’ve used SM6 in the past on this same computer, so hardware support isn’t the issue.

Edit: It turns out that both the editor and the packaged build will run if they are launched with the “-sm6” flag. Is there anything that could be forcing them to try and load (the disabled) SM5 by default?