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Whirly Fizzle
  • This reproeduces to some extent in most locations but certain locations are particularly terrible for it.
  • Teleport to http://maps.secondlife.com/secondlife/Syndicate/180/134/32 - there is a landing point so you need to walk to this location.
  • Just stand at that location or cam around or walk around and observe the ligfhting in the scene.
Observed Behaviour
  • After a few minutes in that location, observe that the lighting in the scene starts to constantly change, certain random areas will change from lighter to darker every few seconds.
  • Also observe that sometimes the lighting changes over the whole scene so quickly it's like the viewer scene is flashing.
  • I'm not 100% sure but I think it's caused by the reflection probes reloading because the bug seems to reproduce the worst in areas with a lot of probes.
  • Setting the "Max reflection probes" setting to None stops the bug reproducing.
  • If the "Max Reflection Probes" setting is set to Low or above, the bug reproduces.
  • The bug also reproduces on default release 7.1.12.13550888671 - ForeverFPS
Videos showing the bug
This bug looks very similar to https://github.com/secondlife/viewer/issues/3738