Thanks for the details! Let's get this sorted so you can get back into your campaign. A few quick things to try: first, clear your browser's cache and cookies (or open the campaign in an incognito/private window) since this resolves the issue most of the time. If that doesn't do it, try disabling any browser extensions you have running, like ad blockers or privacy tools, as these can interfere with the editor loading properly. It's also worth testing in a different browser altogether to see if the issue follows, and if you're on a VPN, try turning it off, since that can sometimes block scripts the editor needs. One more thing to check is your browser zoom, as anything other than 100% has been known to cause display issues in the builder. Finally, try logging out and back in to refresh your session. If you're still running into the green panel and greyed-out Content button after trying those, could you send us a private message with your account details when you have a moment? That'll let us take a closer look on our end. Thanks!