Video rendered bottom after changing aspect ratio

Hello all,

I started using Resolve 15 and I have problem, when I chabge aspect ratio in project whole image is rendered at the bottom like on attached screen. On preview image is correctly centered. How can I fix this?

aspect_ratio.jpg (100.63 KiB) Viewed 485 times

Thanks.

What beta version are you using? Output blanking on rendered mp4s was a problem in version 7 and has been addressed in version 8.

Hello, I'm using beta 7, I will update to 8 and try again, thanks!