ASSERT FAILED: Invalid batch 100001 insertion

I was wondering whether someone could help me with an annoying error that recently started popping up in some projects that I have been working on for a few years now.
It reads:


Invalid batch 100001 insertion

Debugging the scene will result in this error being spammed all the time. Does somebody know where it could originate from and how to stop it from occurring. It might be worth mentioning that I have been maintaining these projects for a few years already. My main hunch was that some update might have have some unexpected side-effects, but I’m not sure.

To whoever has some intel: thanks!

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This seems to be related to some model / render components that are set to be in a batch group, that has been deleted. You should remove the batch group from those components.


Thank you @mvaligursky, it was spot on! I found a bunch of models that had their Batch Group selected to some empty string / null thing instead of the ‘None’ option.

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