Export error completing render code 3

[graham5FA0]

I have edited an hour plus long video in 4k, and keep getting this error when exporting. The strange part is I always seem to get the error at a different timecode and percent encoded. I can export short segments from the timeline with no problem, but get this error when trying to export the whole project. When attempting to export 20 minute ish segments, I am often able to complete the export after 3-4 attempts where this error occured, without changing any export settings. I have also tried changing export settings, exporting in a lower quality, and switching between hardware and software encoding to no avail! Any advice would be greatly appreciated! Thanks

[Peru Bob]

What are the complete computer specs, including hard drives (how many, what kind, what is on each, what capacity, and how full)?

If NVIDIA, make sure to use the latest Studio Driver from NVIDIA (NOT the Game Driver).

[graham5FA0]

Intel Core i7 10700KF 3.8GHz Processor; NVIDIA RTX 2070 Super 8GB GDDR6; 32GB DDR4-3200 RAM; 1TB SSD

With a 4tb external hardrive

[Peru Bob]

 1TB SSD

With a 4tb external hardrive

By @graham5FA0

How full?

Is the external drive formatted NTFS?

[graham5FA0]

the format is actually exFAT. To be honest I have no idea what that means

[graham5FA0]

719 GB free space on internal HD, 1.8TB free space on external HD. 

[Peru Bob]

Well, it's not a space issue.

[Peru Bob]

Does it happen if you export with direct export from Premiere Pro and also through the AME queue?