Synatx highlighting is messed up

[Kranzes]

When enabling the nil with lspconfig on neovim the syntax highlighting looks like this now:

When they should and used to look like this:

I believe something got messed up in the past month or so. This also only happens with neovim nightly, with stable it looks fine. I tried changing nil to rnix-lsp and the colors seem fine.

[oxalica]

You could see that all attributes are grey, all variables are white, so it's probably switching to another colorscheme rather than "messed up".
I guess it's because neovim recently added semantic highlighting in neovim/neovim#21100. The default colors of semantic highlightings are defined in here and you (or your colorscheme plugin) may want to customize them.