I followed a youtube tutorial and was able to adjust a preset template from 1980 HD to 2160 4K and successfully rendered an mp4 file after a few tries. I have gone back and edited more footage onto the project and have followed the EXACT same process to render the 4K mp4 file, but each time I try I get the "an invalid argument was specified" error message.
HOW CAN THIS BE? Please Help.
I am editing with Sony Vegas Movie Studio Platinum 16 with 5.1 surround sound on a brand new home build PC specifically constructed for editing AND exporting 4K video.(Intel i9-9900X CPU; 32 GB RAM; 2 Intel M.2 2280 drives; GeForce RTX 2080; on an MSI X299 Motherboard; operating Windows 10 Home, version 1809).