Hi all,
I've read already through T144483 which is covering the same topic. However, since we have now new CDLC (and maybe more on the way?) it would be nice to have at least a partial fix.
Would it be possible that the "Join" button is not deactivated as it currently is (as per T144483) and maybe a hint/warning appears that you cannot play if the CDLC Terrain is used as a map?
As far as I can see this missing "hint/warning" was basically the only reason to not have a solution for it.
I think this would be very helpful as a lot of people are using the launcher to join servers and they would be warned that they might get kicked/not able to join if the CDLC Terrain is used.