Can't download world file?

So, I'm having an... odd issue attempting to download my world from the server, so I can add a new datapack, and clean up the world using WorldPainter. Unfortunately the world just doesn't download. There are no error messages at all; I click download, the icon briefly turns to the spinning cog... and then nothing happens at all?

It's really confusing, and I'm worried about map corruption.

I use Google Chrome with no blockers or extensions.

So... I still can't download my world. Still not being given an error messages either.

How do I check?

I'm running Version 76.0.3809.87 (Official Build) (64-bit)

I've now managed to download my world through Microsoft Edge though, wish at least solves that. Never thought Edge would ever be useful to me.

That's very odd. However, I do have my world file now.