We had this happen before we purchased our 2019 34G in June, 2021. The front roller fell out on the ground the first time we extended the door side slide. National Indoor RV Center ordered the part, but we didn't have time to hang around in Dallas, so scheduled the work at Las Vegas NIRVC for August. NIRVC found the other two rollers (middle and rear) were loose, so repaired all three. Although JAYCO had said the entire slide had to be removed for this work, NIRVC was able to repair all three without removing the slide. Cost covered by our extended warranty to the tune of about $1400. I hope this repair holds permanently, but worry about it. While waiting for August repair, we continued to use the slide, but slide operation deteriorated as we went along.