Hi Everyon

I have a problem that I would like everyone to help me.
I have a problem using Thai Font on Vegas Pro (all versions) to make closed captions (CC). Because it doesn't display Thai Font on Preview window.
Even though I bought Caption Assistant from Vasst Software to work with Vegas Pro it still doesn't show Thai fonts.
How can I fix this problem? I've been trying to find a solution to this problem since version 11.

Thanks, From Thailand
Chain