Hello there, Seems like Im on the black month here, after solving the overflowrate problems with the extruder Ive started an large work print ( after some small pieces tests ) it worked fine until about the 78% after about 8h of work ( with the random clicking sound Ive readed here from another users ) the extruder stopped to extrude PLA , when Ive checked for it, the filament was broken inside the hotend, manually Ive heated until 230Cº and tryed to feed again from above expecting to push it down to the nozzle, seemed fine until it stopped to extrude again after push a big ammount of the older filament. Now there is no way to manually retract or push it down again , nothing its passing down the nozzle, so I have the titan dissasembled and the hot end out cutted some exceeding filament and watching the filament inside the PTFE at the top of the of the hotend and its impossible to extract it after heating up to 230 - 260Cº , really bad odd problem here and the extruder have about a 2 weeks at home it havent work properly yet... So Im a little rookie and this never happened before with the older mk9 one, now I have to dissaseble the E3DV6 with cautino because I dont wanna broke the temp sensor wired or something more , and ¿ try to extract the ptfe , heat up it again and make some force to try extracting that filament right?. Also I have ordered some calibrated needles of 0,15mm if it can help to clean the nozzle. please can I have some of youre experienced advice on how can avoid this to happen again with this extruder or how its the easiest way to solve it?, can be a faulty motor without sufficient force?. The print was with white PLA 1,75mm from BQ trademark in Spain , at 193Cº with an retraction of 2,00 and retraction speed of 80mm/s recommended from the support team, at 60mm/s priting speed in simplify 3D. Thank you for your help.