I'm not able to play a .flv with the following format:

General / Container Stream # 1
Total Video Streams for this File -> 1
Total Audio Streams for this File -> 1
Video Codecs Used -> On2 VP6
Audio Codecs Used -> MPEG-2 Audio layer 3
File Format -> Flash Video
Play Time -> 7mn 6s
Total File Size -> 17.4 MiB
Total Stream BitRate -> 342 Kbps

Video Stream # 1
Codec (Human Name) -> VP6
Frame Width -> 640 pixels
Frame Height -> 480 pixels
Frame Rate -> 30.000 fps
Total Frames -> 12786
Display Aspect Ratio -> 4/3
QF (like Gordian Knot) -> 0.032
Video Stream Length -> 7mn 6s 133ms
Video Stream BitRate -> 294 Kbps
Video Stream Size -> 15.4 MiB (89%)

Audio Stream # 1
Codec -> MPEG Audio
Codec Profile -> Joint stereo
Audio Stream Length -> 7mn 6s 133ms
Audio Stream BitRate -> 32.0 Kbps
Audio Stream BitRate Mode -> CBR
Number of Audio Channels -> 2
Sampling Rate -> 22.05 KHz
Bit Depth -> 16 bits
Audio Stream Size -> 1.81 MiB (10%)
Audio Encoder -> LAME3.96.1

It plays like a slide show rather than a video. Do you see any problems with this file?