404 Error code on Email Sharable Links

When I or a team member click on a sharable link for a working Marketing Email, we log into HubSpot and then receive this error message: “HTTP ERROR 404, Resource not found”.
If you go back to the sharable link and open it again in the same browser, the email will open successfully. There seems to be an issue where Marketing Email’s fail to load for user’s after they initially login.
Looking for solutions so that my team should be able to view the sharable link the first time they click it and log into HubSpot.

Hey @SPowers05 - thanks for posting in the Community!
To clarify, are these links directing users to private content that requires a log in? Or are these links public? Specifically, I’m looking to better understand the why behind users first logging into HubSpot after clicking into the link.
Shane, Senior Community Moderator

These are the preview links generated when you click “Copy sharable link” in the Email editor.

Hi @SPowers05

This issue sounds more like to happen with a HubSpot shareable link and the login session, rather than the marketing email itself. HubSpot states that the Preview web version link is intended for HubSpot users who are already logged in. If the link gives a 404 error immediately after login but after refreshing it works fine, I will suggest cleaning HubSpot cookies, testing in incognito mode, or try in another browser, then check whether the issue occurs for all users. If it happens consistently across multiple users and browsers,

I suggest you report it to HubSpot Support with the affected link and a screen recording or screenshot; they can check whether this is a backend issue.

Thanks!