...
Possibly a timeline frame limit in the 3D editor? What editor(s) are being used?
When an fbx file is imported, it usually asks in a dialogue box an option to fill timeline, check that if not already ticked.
60 fps x 60 secs is 3,600 frames x 10 min = 36,000 or should be, I would think any 3D editor would handle that, although I can't say I have ever tried that large.
Total frames would usually be cut in half on import to most 3D editors due to default speed being 30 fps, but is changeable in most after import.
...
|