After months and months of trying to import large projects unsuccessfully into Vegas 16 and 17 I have finally found the issue and a workaround...
I noticed that anytime my vegas would crash/crash during import my "committed ram" was maxing out.
Committed ram is a combination of the physical ram your system has PLUS the page file.
Windows by default will generally match your page file size with your physical ram size. IE. I personally have 16gb of ram so windows assigned a 16gb page file giving me 32 GB of “committed ram”
So in dealing with all these crashes I decided to go into my system settings and max out my page file which for me was 172GB. Surely enough Vegas 16 was now able to handle my large imports; 17 did improve but it seems the memory use/coding in 17 is substantially worse . (17 just uses absurds amount of memory)
IE. In some cases the GPU driver crashes users are receiving on vegas 17 are not related at all to the GPU. The GPUs are crashing because the system is running out of committed memory that the drivers need to operate.
Conclusion...
As it stands right now; Vegas has a major dependence on page file usage that in my opinion is the root cause of program instability. You can see screen shots below of V16 using 122GB out of my allocated 172GB of page file for my project. V17 simply ran out of memory and maxed out to 172GB for the same project and crashed. Additionally if you click out of a Vegas window, the entire page file will dump, (v17 surprisingly does not👍) thus when you click back on a vegas windows; it has to reload the entire memory page causing a slow down. I uploaded the entire project to the team via support ticket. Hopefully this helps out the coders and fellow users.
I am now able to import large projects into Vegas 16 and Vegas 17 without any crashing because I increased the page file...