Can't make Movie Render Queue to work - black renders

Hello guys!

Thank you so much for your interest and your answers @comlys @EvanHammel.

I solved the problem.

It wasn’t related to cameras or Shotcut. I found that some of my landscapes were the problem. After a lot of trial & error, I was hiding in-game different assets. Then I turned off all the landscapes of my scene, and the render started to work fine.
It was a matter of patience and unhide one by one until I found that enabling all of them caused the error.

Then I asked ChatGPT what could be the problem, and it told me that having different landscapes touching themselves in different areas of the world causes them to collapse and create weird artefacts. You can see the attached image to have an idea of what I’m talking about.
I had the idea of creating a new camera, moving it a large distance away from the sky to see what happens, and there you go.

What we saw in my previous screenshots were very small triangles from a giant, deformed landscape.

Honestly, I don’t know why it happens, but hiding some of them worked fine. I can’t have all of them at the same time, but well, for this project is OK as I can at least render it.

Thanks again to everyone!