Cant watch Twitch streams anymore because hardware acc. doesnt work. After a short time (less than 1 min) stream playback hangs (pauses) and the decoding util. in Task manager drops from normally ~60% to 0 %. Refreshing the site resolves the issue, but not entirely ( it can still happen later). Using latest driver at the time.
CPU i5 4590
8 GB RAM
Win 10 x64 1803