parts of my assembly disappear using camera view in perspective !!!!

Good afternoon

I'm trying to make a video of one of my machines using a spline to guide the camera.

The issue is, when I use camera view in perspective some parts of my assembly disappear in the  video.   And when I don’t use camera view in perspective all the parts appear in the video.

Because when I use camera view in perspective I get videos with more quality, I wonder If there is anyone o knows this situation and if it’s possible to fix this problem.

I´m using SW2013 - SP3- in a workstation HP, intel core i7 2600, 3.4 GHZ, RAM 8 GB, NVIDIA quadro 2000D

Best regards,

Alberto Leal

SolidworksGeneral