Webdialog Win10 IE11 CSS

It does - the meta tags takes precedence over the app default.

I’ve not seen this before - CSS being blocked but not JS?

I have Win10 IE11 on my machine at home, yet to see any issues there as well. Not sure what might affect this.

Have you tried temporarily disabling this?

Do you see this only with Skatter? Or also other extensions with webdialogs?