This is extremely urgent. I cant play the game because of this.

I had to delete my old skyrim.ini and pref.ini because of some issues and let skyrim generate a new one

Problem is, the new skyrimpref.ini has WAY LESS lines. No bfloatpointrender etc etc no blurmask whatever.
Also, data files is grayed out and NexusModManager's mods cant load. I tried enabling fileselection=1 and it worked BUT, the pref.ini still has way lesser lines.

The missing lines are fine. If it doesn't have certain ones, it uses an internal default list.

the problem is, many times ago, when i generate new inis, the lines are always present. I also have subheadings like [Trees] [Grass] etc
But today when i generate new ini, they are gone. I use ENB and all the enb lines were missing, but previously i get these lines.

i m also missing lines like 'shadow on grass' which were present everytime i redo the ini.
It seems my game has gone back to version 1.0, from 1.8...

Remove the ENB, let the ini files generate and bring the ENB back again.

Thank you!
It actually helped. Options like bShadowsongrass=1 is back.