Same for our gaming community on multiple dedicated server instances. No impact on functionality observed so far besides this warning message.

Yes, it happened during a custom multiplayer mission created by another player. I don't think trying to make the mission available is worth the effort. So far I did not hear about other occurences of this issue.

So far I could encounter this issue only once. Therefore I could not reproduce it in a game session without mods. What looks like the same symptoms have been confirmed by two other persons but also since then it looks like no one encountered this again. I do not have hard feelings about this so if you say it can not be fixed if it is not reproducible I am fine with you closing the ticket.

RPT