Weird glitches when rendering video

Sometimes when I render a file in DaVinci Resolve 19.1.3 randomly appears a weird rectangle on the top that flashes white, gray and black. This doesn't show up in DaVinci's timeline, only in the exported file. I already tried to change some settings (codec, file type), but I have no idea what causes it to happen.

Any ideas?

Well, it was solved by updating DaVinci to 19.1.4.