Forest terrain observation

[Spannerbag]

Hi,
as before not sure where to post this so apologies if wrong.

Am playtesting a campaign and have noticed that the terrain rules seem different.
Apologies if this is a know issue.

The same map is used on v16 and v17 but the terrain renders differently?

Here are screen grabs from both (the maps and WML are the same in both cases).

Map as seen in v1.16.10

Same map as seen in v1.17.24

Note the green trees (pines?) at some terrain boundaries in the 1.17 screen.

Cheers!
-- Spannerbag