Can't publish library and many components are failing to load

I’ve had a strange issue with our team library for the last couple of days. I’m getting no help from the error messages, and I can’t find any fixes in other topics.

I can’t publish any changes to the library at all. There don’t appear to be any errors with the components. The publish pop-up is also showing 60 changes when I have only made a couple changes to existing components. Hitting publish with any of the components selected shows a red error notification: “Unable to publish X changes to the Team Library”.

Meanwhile, other files using the library are showing that there are some updates, but they are for other components that haven’t been changed, and the timestamps for the changes don’t make any sense. They are showing lots of different changes at various times in the last 2 days, while I have been unable to publish. The list of components with updates doesn’t include any of the ones I’ve changed recently.

Accepting these updates doesn’t apply any changes to any of the components anyway. The “Component update available” notifcation reappears if I reload the tab, with the exact same list of (unexpected) changes.

On top of all this, I’m unable to use a lot of the components from the last publish as they are failing to load properly. Selecting them in the assets panel loads the preview window, but shows a yellow notice that the component could not be loaded. Dragging the component out of the assets panel does nothing. This is the case for about half of the components. The others work fine (albeit they can’t be updated).

Has anyone else encountered anything like this before? The lack of feedback from the system about why it’s not working is driving me nuts.

I’m not missing any fonts used in the components, which was a fix in a similar-ish thread from last year.