It's happening to me, too. We need this active for an email sending today! I'm going to open a support case.
Support said engineering is working on it as a P1 issue. I wonder if this is related to the security update they rolled out yesterday?
Susan Brown, Lauren Smith, Frederick Weiss,
We have identified an issue with the View as Webpage link that just popped up a little while ago. Our Engineering team is patching this now and we should have it resolved soon.
Could you please send out a notice when the patch is in place? I need to make sure this function is working before our next email goes out.
Mike Nichols the patch has been fully deployed and the View as Webpage issue has now been resolved.
For reference, when issues like these come up, check the Support page because alert notifications will be posted there, along with updates as they become available.
This is happening for me as well.
Lauren Smith, Susan Brown, Frederick Weiss, The patch has been fully deployed and the View as Webpage links should be working just fine now.