Vodostar

So I have a vehicle with a turboshaft engine. There's fuel on board, engine is engaged, air intakes open, torque and RPM are maxed. No rotation. What am I missing?

Oh. I didn't even see that. I had something weird in the VAB where I couldn't adjust fuel. I must have accidentally hit that trying to get the fuel adjustment to work. Thanks.

I have full fuel and two activated engines. Full throttle. No thrust. The stack display says there's no fuel, but the resource display says full fuel/ox. I use this lander module a lot. It has landed on the Mun and Minmus... and once on Kerbin SpaceX style. It's been to (but didn't land) on Eve. I know this thing works. Why is this not working, now.

OK so I took landing legs off the lander and used them as jacks. That was a PITA, but it worked. But now I have no electric power. I have fuel. I have fuel cells. Why don't I have power? Is this fixable?

So I have a mission to fix a rover on minmus. It needs wheels. When I attach a wheel it sticks into the ground and then the whole rover goes shooting into the sky spinning uncontrollably (in spite of SAS being on). Maybe it lands right side up... maybe upside down... maybe a fuel tank explodes. Maybe the engineer can push it back upright. Maybe pushing it just sends it off spinning into the sky again. Is there a way to avoid this problem? Or is this just repeat from a save point 100 times till I'm lucky enough to have a usable rover at the end of the process?

Thanks. That was exactly what I needed.

I installed KSP 1.12 from Steam recently and I want to add a custom mission flag. I know how to do that. But I can't find the KSP folder. Where does Steam put it?

I've seen videos containing "fleets" which are obviously several ships combined into one but not touching each other, so they fly together. How is this done? i.e., how do you combine discreet objects into a single vessel build?