I have not had an issue for a while except for the knocking that still occurs once in a while. The issue I had this weekend, was while printing several types of images. When printing, the first 2" (50mm) approximately are perfect, even the first layer. Then after that the build starts to get porus, and feels like material.. I have tried several different rolls of filament, including Hatchbox the latest, and all are doing the samething. I tried printing stl's that I printed months ago, that were fine, and now have this problem. I'm on the latest studio and firmware. Any ideas? I know I do not have a clue.. I even reset the flux studio back default settings, such that I had to reconnect and do the initial setup. Thank you in advance..