Looks like the cards are there when the issue is present (the same as without, as far as I can tell), so I don’t think that’s the source of the issue. Also it doesn’t seem like there’s one specific spot that’s more likely to trigger the issue… I’ve seen it it quite a few places so it’s possible it has no relation to the art content (I just can’t rule it out). I just used that particular area in the screenshot since that one should be safe to keep this non-confidential.
With the issue (wrong lumen, correct cards):
[Image Removed]Normal (for reference):
[Image Removed]
One other observation is that it seems that rapidly switch scalability settings that involve lumen seems to be more likely to trigger it than switching them slowly (though we have seen it simply by starting PIE and loading the player’s saved settings). I’m wondering if switching off a setting requests amortizing “unloading” at the same time as another setting is requesting amortizing “loading”, thus getting an unpredictable mishmash of some meshes that contribute/don’t. I’m not familiar enough with how lumen behaves in this regard to ask about anything more concrete here, unfortunately. Would you know if based on that description there may be a suspicious area of the code to investigate?