When I bought filament from this manufacturer a few months ago (could have been 1 year ago), everything was still fine, but the last ones I bought disappointed me greatly. Either the filament was far too thick throughout (I bought 1.75mm, but was delivered with a diameter of 1.9 to 2.5mm), or there were knots in the filament in several places, so that print jobs broke off during printing or the filament even tore. (I have never had any problems with moisture. I am prepared to pay a little more for filament, but basically I demand filament that I can print continuously. I don't want to have to constantly check how thick the filament is or if it has a knot. What is your experience, am I perhaps just the exception (I have bought 15 rolls so far, so maybe I can already speak of some experience), do you have any suggestions on how to solve the problems?