I'm playing a new campaign with some friends and the content sharing isn't working for me and me alone. The campaign owner has it on for sure as it is working for all other members. I can't even use it on old campaigns I have played. Any advice?

Are you making the character in the campaign? Content sharing only works for characters currently in a campaign. If you are making the character outside of the campaign then you won't see the shared options.

Have you enabled the right content toggle on the Home tab of the character builder? Example: critical role for Tal'dorei and Wildemount books, Magic: The Gathering for the Theros, Ravnica and Strixhaven books, non-core content for other stuff, etc?

Have you checked your entitlements are in sync (check here: https://www.dndbeyond.com/account/licenses)?

thanks for the response. I am making the character using the in-campaign interaction. It is also broken when I try to access previous campaigns too. I enabled everything under the content section and even compared screenshots with the host. Syncing the entitlements was the last thing I tried before posting this, but it said everything was already in sync.