Fatal error: GPULightmassSettingsActor

Hello,

I keep getting a fatal error which causes my UE5.1 project to quit. Seems to relate to GPULightmassSettingsActor.

Fatal error: [File:D:\build++UE5\Sync\Engine\Source\Runtime\Engine\Private\LevelActor.cpp] [Line: 577] Cannot generate unique name for ‘GPULightmassSettingsActor’ in level ‘Level /Game/Levels/TRACKING/nDisplay_TRACKER_v06.nDisplay_TRACKER_v06:PersistentLevel’.

Anyone got any ideas? I’ve added a Level to my main Level which contains all of my generic VIVEMars tracking actors, which the error message relates to. I’m using these actors across many different Levels, so I’m hoping I can stick with this approach?

Any help would be appreciated.
Thanks in advance.

I found that the ICVFX camera in my nDisplay setup uses the GPULightmass plugin, so I’m thinking the problem is there somewhere?