I have a 3D motion tween with 1 layer only and no actionscript.
I have the same file this time, it contains only frame by frame 3D animation on layer1.
I was hoping to get a frame by frame images but Wallaby throws an error and say 3d not supported.
Any alternative like export multiple images like gif or any other converter or some other way around that?
Unfortunately you have posted in the wrong forum for help with your issue. It would seem that you need help with Flash and this is the forum for Captivate. Captivate creates Flash output, but Flash it is not.
It would appear the Flash forums are at the link below. So click the link and try asking your question in the appropriate forum category you find there.
Best of luck to you in sorting your issue!