I've been using Vegas Pro 22 and have developed a notion that the fairly frequent crashes i used to get which resulted after the software froze up, were all due to overloading the data processing system. I do a lot of complicated, overlapping FX which puts a lot of data into the system provoking that spinning wheel that indicates the system has been backed up with its processing. Even tho i have a very fast computer, i now let that spinning wheel close before doing any more editing and since i have been doing that, it hasn't frozen up.