Longer videos(mp4) issue.
The video start, then stop after few seconds.
Using https://9gag.com/video as test, you can't watch longer videos after a time browsing in Vivaldi (tested with Vivald, Opera, Edge and Chrome, this error only occur in Vivaldi).
@vipperland Can not reproduce this.
Which Windows version?
Which Vivaldi version?
Vivaldi 1.11.917.43 (Stable channel) (32 bits)
extensions: AdBlock Plus Extension
The video plays only few seconds and freeze (can be any video, in any site), this error occur at random on longer videos (60 seconds+) and after a while browsing (don't need multiples tabs open), maybe this can be a issue with the browser cache.
I had this error several times in the past (2yr ago), then I uninstalled Vivaldi, went to Opera and now I'm trying Vivaldi again, but this error persist and it can be very annoying if you are developing a webapp with runs video in the background.
I can't see such problem on my 1.11.917.43 x64 Win 10x64.
Did you try without AdBlock+?
Any antivirus or security tool running?
Overclocked GPU or CPU or RAM?
Try Enable of flag in vivaldi://flags/#disable-accelerated-video-decode for a test.