I downloaded Dark - s01e08 and noticed artifacts during a short scene (00:00:17 - 00:00:23). I watched the whole episode, the problem occurred only this one time. When I downloaded the episode again, but canceled the download this time, the artifacts were gone (see screenshot). However, the sound stopped very briefly at about 00:00:01.5, which was not the case with the first download. After that I downloaded Dark - s01e01 and I had artifacts again for a few seconds (00:00:21 - 00:00:23). I downloaded the episode again and stopped early, the artifacts during this scene were gone again. But during this download artifacts appeared during the Netflix intro (00:00:00 - 00:00:05), see screenshot. The videos of the interrupted downloads had a length of about 1 minute, the whole episodes of about 50 minutes. I have attached log files for these downloads. I tested another series (Black Mirror - s05e01) and had no artifacts or whatsoever. All this happened to me with Anystream 188.8.131.52, but I had the same problem with version 184.108.40.206. With 220.127.116.11 the problem does not occur.