Similar situation with my 2016 3010DS when about 1 year old (that's about 30 minutes after the warranty expired". Found pieces of roller bearings underneath the slide. Turns out the "cam-follower" bearings had crushed under the load. Spec'd them out based on the numbers etched on the side of the unbroken ones and found they were "very light duty". Replaced them myself with heavy duty ones from McMaster Carr and since then, no problems.
Wasn't an easy fix, but doable if you have some mechanical skill-sets.