Cannot edit network ID simultaneously in multiplayer.
If two different players interact with 2 different LTN combinators at the same time, both combinators will have network ids changed but it appears "random", seems to be whatever the other player selected.

This is using space exploration + krastorio 2.
Might be related to one player using the satellite view (space exploration) and editing things remotely.

Yes, this is a hold-over from some of the legacy code. I've been meaning to do a re-write of it so I can address this. Life (and my first Angel's) run has distracted me.

Thanks for the report, and I will refocus some attention on this in the near future.

https://github.com/kryojenik/LTN_Combinator_Modernized/issues/17

Got this one sorted out... Thanks for the reports.