We encountered this problem too after upgrading to 4.15. It's caused by a timing problem when showing/hiding the async loading splash screen, so we only found it when loading maps in standalone that included streamed sublevels.
FAsyncLoadingSplash::OnLoadingBegins() tells Oculus to show it's splash screen (black screen), then bAutoShow is set to false in FHeadMountedDisplay::UpdateSplashScreen(), meaning that when FAsyncLoadingSplash::OnLoadingEnds() is called, it skips hiding the splash screen again.
You can work around this by adding an extra check to OnLoadingEnds():
if (bAutoShow || LoadingStarted)
Requesting info from licensee
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There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-43795 in the post.
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Component | UE - Platform - XR |
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Affects Versions | 4.15 |
Created | Apr 10, 2017 |
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Resolved | Jan 3, 2019 |
Updated | Sep 16, 2019 |