u/BeneficialAvocado762

I'm using a steering wheel plus H shifter and I can't make the Gifu go into 1st gear or into any gear, it just keeps making this grinding noise and it won't do anything. I've somehow got it to go into 1st gear once and then had no problems driving it but when I stopped the car and tried to put it into first gear again the same problem started happening and I couldn't get it to move.

This is the only vehicle that causes me problems, the shifter keeps rapidly flickering between a gear and neutral while making a loud grinding noise HELP.