Check 2018 Forester for slide out rollers
During replacement of my slideout seals it was discovered my bedroom slide out was missing rollers. I was told by my service shop that a consultation with the factory and additional inspection on the factory floor indicated missing rollers on those units as well. I think it's worth a check to see if they were installed on your 2018+. Another item was missing from the factory. but that's for another post.
2018 Forest River