"This collection is empty"

Hi.

Suddenly a collection we use quite a bit is empty. If we go to one of the questions that is stored in the collection the location on the top still lists the collection in question as its home but if any user navigates to the collection we get an message:
This collection is empty
Use collections to organize and group dashboards and questions for your team or yourself

I figured it was probably a change made to the permissions and went in made sure they are good. All users is listed as Curator.

Any ideas?

Hi @thendren
Post "Diagnostic Info" from Admin > Troubleshooting.
Make sure that you don't have a reverse-proxy or browser extension causing problems by intercepting requests.