we are investigating a strange issue since some time, playing an RTMP H.264 live stream with OSMF 1.6spr5 (1.5 before) and Flex 4.5.1 (4.1.0 before).
Depending on OS and Flash player version, in 10% to 50% of cases the video state changes from buffering to playing, but the screen stays white. Also there is traffic on the network, i.e. the video stream reaches the player.
http://livespotting.tv/stream/demo1/tiny/ (minimal player using MediaPlayerSprite)
Flash player 10.3.181.34, Windows 7 seems to be affected most heavily (about 50%).
Flash player 10.2.159.1, MacOS 10.6 fails sometimes (about 10%).
I played with thetiny player, since the main page did not work.
I experimented with one of your stream in our debug player and it seems that it works in my network conditions.
I often encountered buffering events, but not coming back from buffering and not playing.
You could play with the bufferTime to see if it improves something, in your network conditions.
Let me know what happened,
thanks for the reply, very helpful link.
I managed to produce the bug with the debug player -- it seems, it occurs more often when the stream is played in parallel in multiple browser tabs.
One symptom was obvious: the buffer went above 100%, so the stream arrives but is not consumed by the decoder.
Environment was Windows 7, Firefox 5.0, Flash player 10.3.181.26.
P.S.: Could you explain what the problem was with the main page? Might be you were affected by a config change last night...