Manual Recordings of extended length won't entirely pulls rom TiVo to PC via PyTivo

I have a Premiere Elite and use PyTivo extensively. One problem that keeps coming up for me that on the rare occasion I set a manual recording of an extended length, say 5 hours, and then try to transfer that five hour show to the PC with either PyTivo or Tivo Desktop, I only get the first hour of approx 4GB to transfer, and not the whole consecutive 5 hours of total size 16GB. I do see that the manual recording lists that first hour of show in the title metadata, and I think that maybe the header/metadata of the first hour show name listed (first Hour video=4GB) is all that is transferring of the complete five hours 16GB. Is there any way to get it to transfer the complete contiguous single 16GB five-hour file manual recording in entirety? Will KMTTG do it?

Thanks,

Scott