"Loading View..." message when viewing page with view components

"Loading View..." message when viewing page with view components

When i go to any page with a view component (even if the view is the only thing on the page), I just get a "Loading View..." message appear. I have left the page for 15/20 minutes, but it hasn't displayed correctly.

Other pages work as expected.

Appears to have started earlier this morning. Is anyone else having this issue?