why does sony movie studio platinum 12 keep crashing

Video from Panasonic cameras has always been problematic in Vegas Pro and Vegas Movie Studio. i7 6700HQ 2.7 32GB RAM DDRIV 1TB HDD Nvidia 3GB GTX970MīTW, I have tried with and without GPU acceleration, Resetting MS and emptying the cache, I have copied all settings from MS15 as much as possible.

So at the moment I can render the high bit rate DJI 4K at 60fps but not the 4K 25fps from a Panasonic camcorder on MS17. Next tried HEVC NVENC failed to render (the system is low on memory) message, however task manager showed only 44% memory being used. failed to render on AVC NVENC (an error occurred 0x8066000)message I trialled a few small DJI 4K clips on MS17, it crashed several times 'programme not responding', on a forum somewhere, someone recommended unchecking open cl which allowed the clips on the timeline to be rendered, ie, DJI 4k 60fps MOV files, normally if it works on those it will work on anything else that I have. I ended up with MS15 working perfectly, so when Derek sent me a link for MS17 at £28 I thought I couldn't miss out on that bargain. Recently Derek helped me sort a problem with advanced options not popping up in MS15, which turned out to be something to do with old Newblue titler downloads.(thankyou Derek) I have been using movie studio for many years now, MS12 being the first.

Why does sony movie studio platinum 12 keep crashing