I've been having this problem for two weeks now, and please bear with me, I am new to this stuff. When I create a new generated text, it doesn't show in preview unless I put in on solo, which is what I don't want to do since it blocks out other tracks. I've searched around on the internet, but there isn't much information on this. I am using version 15 of Vegas Pro, Windows 10 Home edition, 4gb ram and a 64bit OS with an x64 based processor. I know there are newer versions of Vegas Pro, but people with the latest versions have been experiencing this problem too.