Not everyone on this forum is a fan of the curtain rods and supports that Scamp
installs at the factory. I'm having "technical" and decorating issues with mine. My 13' trailer was purchased in 2011. If your rods are coming loose it might be a good time to replace the supports and rods with something more sturdy. If only one rivet is loose I would leave things as they are. Unfortunately, standard "cafe curtain" rods and supports are usually of poor, lightweight quality. The rods included with the Scamp are too small to fit snugly in the rod support. I replaced my rods with cafe rods from Walmart (standard size). These rods have a larger circumference and have finials which keep the rod more snugly in place. I also put a length of old tent rod inside the hollow curtain rod, giving it more strength. In spite of this the curtain rods often "pop out" while on bumpy roads. Even when I secure the rods to the support with "zip-ties" they sometimes pop off.
Because I like to change out the look of my curtains it means I take the rods off and on frequently. I have to be very careful not to stress the support too much as it may result in weakened rivets and/or bent supports. I've attached some photos to show my "glamping" efforts. These are old photos and I think they show the original rods that Scamp installed.
If I were to purchase a new Scamp I would bring my own curtain rods and supports and ask Scamp to rivet them into the trailer. Some people prefer not to have curtain rods at all.
Good luck with your decision.