This has been going on, for a lot of time. At first, when I bought the software it blocked all Youtube ads... Then some months ago it started to fail.. and I saw ads on every Youtube video on Chrome for Windows. Then lots of videos stopped on the middle to show ads (yeah, like no ad blocker is installed). I searched for this topic and disabled some Chrome flag per recommendation, and it worked for like two days... Now again. I've been sending reports and the staff says they "can't reproduce the issue", nevertheless lots of people are reporting this. Now, are we gonna have an answer? Because right now, as awful as it sounds, I need to use uBlock to block my ads (even when they use the same lists).