i have a bug with all fuel

[pijamaman5]

I have a bug (or i am stupid ) :my fuel tanks doesn't work at all ,if i put a fuel tank on a engine  (all) ,when i lautch ,the game say me  the engine don't have fuel .I test  with the rockets of the game and the steam workshop and it don't work too .Please help me 

[Popestar]

Without having screen shots to help you with, my first guess is that you are using a wrong fuel tank/engine combination.  For example the FL series work with liquid fuel engines such as the Reliant.  Make sure you aren't trying to use an air intake engine with a liquid fuel tank, or vice versa.

My second piece of advice is to check the throttle.  Are you throttled up enough to generate thrust?

Finally, right click on the fuel tank and make sure you didn't remove all the fuel.