Encountering a crash in Lyra when you hit PIE if you have an animation montage document open with an animation segment selected and the preview scene visible in the animation segment details panel.

The crash can be prevented when adding the following to the DefaultGame.ini:


Without this setting it is possible for ULoadingScreenManager::ShowLoadingScreen() to cause a nested UWorld::Tick, which ultimately leads to the crash.

Steps to Reproduce

Open Lyra project:

  • Open any montage (AM_MM_Dash_Forward)
  • Move the animation document tab outside into its own window.
  • Select an animation clip in the montage to have the viewport preview appear on the details panel.
  • Now start a PIE session. This will cause the crash.

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ComponentUE - Content - Sample
Affects Versions5.1
Target Fix5.2
Fix Commit25339023
Main Commit25340557
Release Commit25339023
CreatedApr 24, 2023
ResolvedMay 4, 2023
UpdatedMay 15, 2023
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