Paint booth broken?

Don’t know if anyone can help me, but every time I do a Paint Job on a vehicle as soon as I save it to my catalogue or on the vehicle itself as I exit the Paint Booth it goes back to the manufacturer paint job and then it won’t load the paint job back on the vehicle from the design catalogue (sometimes). If it does load onto the vehicle I can’t even edit the paint job because soon as I enter the Paint Booth the design disappears off the car and I’m left with the manufacturers blank canvas.

It also sometimes won’t let me upload designs which can be annoying.

I hope someone has an answer for me as I’m my teams painter and with this problem my team are not getting any paint jobs made for them as it won’t allow me to do it at the moment.

Regards,
HCCR RedDragon