I know this issue has been raised before but I've never come across an explanation for this. Basically, grass objects (like from LFieldGrass02) appear in the Creation Kit but not in a custom worldspace. The landscape texture shows up fine, just not the auto-populated grass.
I paint LFieldGrass02 in my worldspace and in the Creation Kit I can see the grass objects populated on the texture. So far so good. But when I jump into the game, I can see the landscape texture, but no grass objects are populated.
If I add the following line to the Skyrim.ini file I can see grass in my worldspace:
[Grass]bAllowCreateGrass=1
...but that doesn't explain why I can see grass in the Tamriel worldspace without the ini setting and not in my own.
A potential workaround would be to attach a script to the player via a quest that runs the following line on load so I don't need to include an .ini file with my mod:
utility.SetINIBool("bAllowCreateGrass:Grass", true)
"No Grass" is not ticked in my worldspace settings and the landscape is definitely above sea level. Those are the only two things I know of that prevent grass from being automatically populated.
Is there something I missed, like having to regenerate Max Height Data for Current World? Any ideas would be greatly appreciated!