Good day. There was such a problem - VEGAS Pro 17 freezes during operation. in the task manager, the program does not respond. only restarting helps. the system requirements of the computer are much higher than the recommended ones. System Win10.
How can this problem be solved ? Reinstallation didn't help.
I apologize for mistakes in the text, I use google translate
• The recommendations in the FAQ for solutions when VP is crashing.
• Disable so4compoundplug.dll if videos are AVC https://www.vegascreativesoftware.info/us/forum/avc-xavc-s-issues-in-vp15-16-try-disabling-so4compoundplug-dll--108345/
• A driver cleaning http://www.guru3d.com/files-details/display-driver-uninstaller-download.html
• If you're using an Nvidia GPU make sure you're using the studio driver, not the game driver. I've also found that the 451.48 driver is much more stable with VP than previous versions
• Make sure your cache folder is clean by deleting everything in C:\Users\<user name>\AppData\Local\VEGAS Pro\<version #> (delete everything with VP closed and use task manager to make sure it's really gone from memory). The initial startup will be kind of long after this cleaning but once it's up, restart VP again. Use task manager to make sure VP is completely gone from memory before starting it back up.
• Try these tips too 
Trim your project looking for fx combinations that cause problems. For example, Picture in Picture and Layer Dimensionality together are lethal on my machine