How to get rid of the black square at the edges of the world?

[MResearch]

I have a world where the sightline is quite far. Players are able to see a black lined square at the bottom edge of the world. See screenshot.

I've tried turning off `Environment > Show Grid` already but that doesn't help since this isn't a grid. This is something else.

How do I turn this square off? It's really jarring and doesn't fit within the world I'm building at all.

[InaCentaur]

do u see this in simulation mode too or only in edit mode 

[SeeingBlue]

This looks like the edges of a transparent plane. @SpaceGlitterUnicorn  any ideas?

[MResearch]

I see it everywhere: in the editor and on my phone

[MResearch]

No transparent plane in the scene. This is something we cannot remove because it's not an object.

[MKE_TheGuru]

Hi MResearch!

This looks to be a matter of the skydome tiles being misaligned. While skydomes are meant to be seamless, it's not impossible for them to have some seams to them when using the GenAI skydome feature. I have generated a skybox and as you can see I have a similar issue. I recommend one of the following:
1: Iterate on the skydome with GenAI until you have one that is satisfactory
2: Create custom skydomes for seamless results Original Documentation here, my companion guide here
3: Use the world to hide these seams as they tend to be located on the bottom of the skydome

I hope this helps! Happy creating!

[MResearch · Accepted solution]

Found the issue! Generated skydomes unfortunately create cubemaps that have a missing line of pixels at the bottom. 

Just have to edit it out!

Thanks to everyone who've responded.

[InaCentaur]

what is your automation process for this export

[MKE_TheGuru]

You can export the generated skydome cubemaps at the points I marked on the included file. It's worth noting that in the standalone desktop editor, the export menu popups seem to be unresponsive so when you get a skydome you like, use the 3 dot menu to download the file as that one seems to work consistently (marked #1 in image)
Happy creating!