DXLTAV

So it turns out the Pathfinder mod and WBI classic stock was causing the issue, no clue why that happened but after uninstalling it got fixed

Yes, I had removed some mods and that happened, it was the rational resources stuff and now it's gone, although hydrolox shows up for the RCS stuff.

Have a issue with the mod itself, there are no hydrogen fuel options for my spaceplane

trying to use the Valkyrie tilt engine but it needs thermal power and I have no clue how to get thermal power.

For some reason the grav engine doesn't work for me idk why tho