Issues when posting videos

[kazak]

Is there some kind of issue when posting videos using this [webM][/webM] the BBCode? I posted some videos some time ago and when you went to the post the video loaded and then it started to play, now all you can see is a black box and on the lower right corner the legend "phpBB [video]". At first I thought that maybe there was some kind of issue with my computer, but later on I tried different computers and I'm getting the same result. I've found some postings with the same issue, What I've been doing now is providing a link to the video itself or to the page that contains the video. I also see that paroxysmia is reporting a similar problem with youtube videos.