I'm posting this in the hope that the new update for France doesn't get "broken" (pun intended) and a future update for Scheldt and other titles get's fixed.
In my mod I noticed that the 3D broken terrain for Scheldt has the 3D terrain features laid over top of the other terrain most notably the roads. It seems to be like this in a number of titles.
France however seems to be working as it should be.
So far it seems I don't think I've missed anything since my mod uses the same features set in all titles I own.
I don't have Market Garden so can't check that one out.
This picture is from France 40 and looks good.
This is from Scheldt 44 and not only the broken terrain but also the new "jungle" terrain is clearly not WAD.