After I render my videos I try to watch them as a preview but lately (about 3 days now) it's been giving me the message "This file isn't playable. That might be because the file type is unsupported, the file extension is incorrect, or the file is corrupt." 0xc10100be. But I have not changed anything about how I Edit, Render, or Upload my videos. Unfortunately, I'm not 100% sure it's a Vegas Pro issue specifically but I literally can't find any answers anywhere online. But as of right now I can't even make videos at all.

I use Vegas Pro 17. I also can't find a way to contact customer support (assuming it is Vegas Pro) directly. Everything redirects to these forums.