Hello! I am quite new at VEGAS Pro, started editing a couple of months ago and I am currently working on a big project wih 1+ hours of video lenght. But as time went by I started facing this problem more often of crashes under this "Unmanaged Exception (0x00000000)". I tried unninstaling and reinstalling Vegas but the problem didn't go away. Plus, never found anything related to my specific problem on Google or YouTube.
(Sorry for my bad english, am not a natural speaker)

Problem Description
   Application Name:    VEGAS Pro
   Application Version: Version 21.0 (Build 315)
   Problem:             Unmanaged Exception (0x00000000)
   Fault Module:        C:\Program Files\VEGAS\VEGAS Pro 21.0\FileIO Plug-Ins\mxcompoundplug\dp4.dec.video.amd.fallback.dll
   Fault Address:       0x00007FF8B8A213B3
   Fault Offset:        0x00000000000213B3

Fault Process Details
   Process Path:        C:\Program Files\VEGAS\VEGAS Pro 21.0\vegas210.exe
   Process Version:     Version 21.0 (Build 315)
   Process Description: VEGAS Pro