When I download the light grid mod from the mod center it downloads fine and it appears as part of my active mods in the game lobby but when I actually start the game no grid appears. I have other mods (dark grey, no snow, small trees) which I downloaded a long time ago which appear to work fine. Anyone know what this issue is?

hi Motorboatin_SOB,

Check again if any other terrain mod not overwrites them. Try with other grid mod if you see changes or not, also maybe with your resolution it's just hard to see the light grids.

Thanks for the response. This was the issue. For anyone coming across this in the future: the mod which was overriding is "Enhanced Terrains v2- No Snow."