ffmpeg fails to properly create avi from jpegs when frame rate <= 3

[markgilmore]

When the frame rate (# of jpegs per sec) is <= 3,
the resulting avi only shows the 1st image.

The only work-around is to create extra/redundant jpegs,
so as to make the rate > 3.

I have spent MANY hours trying infinite combos of every frame-rate-related argument.

my typical (failing) command (for 2 frames/sec):
ffmpeg -y -r 0.5 -i "%06d.jpg" x.avi

I am using latest vsn.
It happens in windows and linux.

My head aches from banging it against this wall.
Am i missing something ???
Thanks

[markgilmore]

correction to above cmd: ("-r 2"):
ffmpeg -y -r 2 -i "%06d.jpg" x.avi

[markgilmore]

PROBLEM FOUND (so to speak):
It was in VLC (on WIN64).
When I play it w WinAmp? or VLC(Win32), it works.
Sorry for the bother.

[cehoyos]

For future reports: Please always add the command line together with complete, uncut console output.