I have seen other topics mention this exact issue, but none of the discussions have lead me to a solution for my own issue.
I've been using Movie Studio Platinum 14 (Note: I am now using Vegas Pro 19 with the same issue) since it was new, without any issue. This past week or so, I started to have issues when rendering videos, where the program would crash and cite nvopencl64.dll as the Fault Module, suggesting a sudden conflict with my NVidia drivers.
Nothing should have been changed with my system during this time, but I attempted to check the driver for corruption, and even forcefully installed the most recent drivers by going to nVidia's site and downloading them. I have also now upgraded to using Vegas Pro 19. The same issue persists, and has even resulted in some crashes when attempting to close the program. It should be noted that when disabling GPU rendering, it SEEMED to resolve the issue at the expense of longer rendering times, but I have not tested this enough to guarantee.
My video card is a bit old - a GeForce GTX 1660 - but everything else appears to be functional in its usage, and I have no other crashes to report that would be connected to it or its drivers. My system is also getting a bit old - Intel(R) Core(TM) i5-9600K CPU @ 3.70GHz 3.70 GHz with 32GB of RAM - but again, there should have been nothing changed with my system to suddenly cause these conflicts. I also use Windows 10 and have no upgraded to 11 yet.
So, in short; Vegas Pro 19 is crashing when rendering or closing, and the fault module is nvopencl64.dll. Tried updating drivers, and it did not help. Unsure what the next step should be for resolving this. If more information is needed, please let me know.
Thanks in advance for your help.