Hey everyone! I am using E3Dv6 HotEnds on my CR-10s, my Anet A8 and 2 TEVOs. They are doing their work, except on JANBEX PLA, which causes terrible extrusion issues. I have been printing before with that filament and it gave me the best results, but it just won't work on my CR-10s (bowden) and the Anet A8 (bowden) with E3Dv6. On the other hand, the TEVOs (direct) have absolutly no problems printing with the same spool of JANBEX PLA and E3Dv6 HotEnds. On my CR-10s and Anet A8, the HotEnd causes blocks or uneven extrusion. Other materials are working just fine. First i thought the geared extruder of the TEVOs are the solution, so i purchased a Titan Extruder increase the pushing power, but the issues are still there. I've run out of ideas but want to keep using my favorite filament on every printer. What I have tried so far: Temp from 180-220 Retraction 0 to 5.5 Printing speed 10-100mm/s Part cooling 0-100% lowest to maximum pressure of the gear on the filament Cleaning the gear, HotEnd, reassembling it (since i am also using E3Dv6 at work i have assembled multiple ones), changing the PTFE tube The CR-10s uses a 40mm Noctua fan, on the Anet A8 im using the original 30mm E3D fan. As far as I can tell, the airflow isn't blocked. I use a hardend steel nozzle, 0.5 and 0.6mm, but also tried on standard 0.4mm brass nozzle on both the CR10s and the Anet A8. RaspPi with Octoprint. Pictures and description: imgur.com/a/jgfOhew I would be very grateful for any advice! Please help me solving this problem, I have been spending too many weekends on trying to fixing it but do not make any progress. If any other information is required, let me know and i will add it!