Can't share reel to social channels

I can't share my reel to my social channels. I just get this message, so I don't have the option to add a cover photo either. If I go ahead and try to publish it just sits in my content scheduler...going nowhere.

I've tried clearing my cache, disconnecting and reconnecting to social channels, I've logged out of Adobe express and then back in again...I've tried different WiFi networks...I'm stuck!

Any suggestions? Is this a bug?

I'm running MacOS Sonoma, on Chrome.