build cineform 5.2.8.291
i convert single eye files from quicktime to avi cineform.

i load it in Firstlight, and Firstlight show me 2d file like 3d file, show 3d control, and not allow me to mux it...

any idea?

No, please send the file to us. use support.

i discover that is an os issue, i restart computer, and now firstlight work fine

Me to Carlo.

I created Cineform File 1 L and File 1 R from the PPro timeline, muxed them together in Firstlight to create the stereo file (File 1 L_3D) and aligned the stereo file to my liking. Now File 1 L is playing up, it's like it's taking the metadata from the muxed stereo file. I also noticed this the other day when I was demuxing for composition purposes. I thought the same as you, reboot fixes the problem, until it happened again.