Unreal Engine Issues

UE-106853

Assertion failed occurs in VR when walking into water on QA-Waterworks map

Assertion failed occurs in VR when walking into water on QA-Waterworks map

Description

Encountered a crash when testing shadows in QA-Waterworks map. I found an issue when walking into the water at the bottom for Example 2A, where it would crash upon entering the water. See screenshot and logs attached.

When I crash going into the water, I have to go in a good distance (without crouching), before I crash. If I crouch while too deep, I crash. I basically walked 1 tile at a time to test where I would crash before logging this. It seems more related to the position of the camera rather than the actual depth of the character in the water (i.e. when the camera is submerged, it crashes).

Steps to Reproduce
  1. Open QAGame
  2. Open QA-Waterworks map
    • Content Browser > Game > Maps > Rendering
  3. Launch on for Windows with Start in VR enabled
    • Project Settings > All Settings > Start in VR
  4. Navigate to Example 2A
  5. Walk into the water in front of Example 2A, walking down to the bottom of the lake

Result: Crash occurs when player enters the water
Expected: Player can walk into the water without errors or warnings

Callstack
[2021.01.20-20.24.14:510][380]LogPlayLevel: Error: [2021.01.20-20.24.14:333][390]LogWindows: Error: begin: stack for UAT
[2021.01.20-20.24.14:510][380]LogPlayLevel: Error: [2021.01.20-20.24.14:333][390]LogWindows: Error: === Critical error: ===
[2021.01.20-20.24.14:510][380]LogPlayLevel: Error: [2021.01.20-20.24.14:333][390]LogWindows: Error:
[2021.01.20-20.24.14:510][380]LogPlayLevel: Error: [2021.01.20-20.24.14:333][390]LogWindows: Error: Fatal error: [File:E:/P4Workspaces/Main/Engine/Source/Runtime/RenderCore/Private/RenderingThread.cpp] [Line: 907]
[2021.01.20-20.24.14:510][380]LogPlayLevel: Error: [2021.01.20-20.24.14:333][390]LogWindows: Error: Rendering thread exception:
[2021.01.20-20.24.14:510][380]LogPlayLevel: Error: [2021.01.20-20.24.14:333][390]LogWindows: Error: Assertion failed: !bIsLoadActionInvalid [File:E:/P4Workspaces/Main/Engine/Source/Runtime/RenderCore/Private/RenderGraphValidation.cpp] [Line: 421]
[2021.01.20-20.24.14:510][380]LogPlayLevel: Error: [2021.01.20-20.24.14:333][390]LogWindows: Error: Pass 'SeparateTranslucencyParallel' attempted to bind texture 'SeparateTranslucencyColor' as a render target with the 'Load' action specified, but the texture has not been produced yet. The render target must use either 'Clear' or 'NoAction' action instead.
[2021.01.20-20.24.14:510][380]LogPlayLevel: Error: [2021.01.20-20.24.14:333][390]LogWindows: Error:
[2021.01.20-20.24.14:510][380]LogPlayLevel: Error: [2021.01.20-20.24.14:333][390]LogWindows: Error:
[2021.01.20-20.24.14:510][380]LogPlayLevel: Error: [2021.01.20-20.24.14:333][390]LogWindows: Error: [Callstack] 0x00007ffb08a296c9 UnknownFunction []
[2021.01.20-20.24.14:510][380]LogPlayLevel: Error: [2021.01.20-20.24.14:333][390]LogWindows: Error:
[2021.01.20-20.24.14:510][380]LogPlayLevel: Error: [2021.01.20-20.24.14:333][390]LogWindows: Error:
[2021.01.20-20.24.14:510][380]LogPlayLevel: Error: [2021.01.20-20.24.14:333][390]LogWindows: Error:
[2021.01.20-20.24.14:510][380]LogPlayLevel: Error: [2021.01.20-20.24.14:333][390]LogWindows: Error:
[2021.01.20-20.24.14:510][380]LogPlayLevel: Error: [2021.01.20-20.24.14:333][390]LogWindows: Error: end: stack for UAT
[2021.01.20-20.24.14:510][380]LogPlayLevel: Error: ERROR: Client exited with error code: 3

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Cannot Reproduce
ComponentUE - Graphics Features
Affects Versions4.27
Target Fix5.0
CreatedJan 20, 2021
ResolvedOct 13, 2021
UpdatedOct 14, 2021
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