Hi I have Ultimaker S5 about 2-3 months, had no issues with it until yesterday. I used PLA/Tough PLA/ABS on print core 1 and PVA Natural on print core 2.
Mostly I've been printing small things that would not take more than 3-4 hours, have printed 2-3 big ones that took 15-20 hours.
Yesterday I was printing and noticed that nozzle stopped extruding filament. I made a little bit of research and found that both of my knurled wheels of the feeders have dug in to the filament.