Hi @flannelizetheworld, 

Welcome to the Community! Happy to have you, I’d be more than happy to share some insight into why this might be happening.

Definitely agree that mobilizing your emails to be viewed well on mobile is indeed industry standard. However, if you’re not aware, there is an option in in your Template under Styles > Mobile section of your Template that says ‘Enable Optimizations’, essentially this feature automatically optimizing your email for mobile viewing instead of manually creating a mobile-only view of your campaign. 

Essentially, these display issues could be happening for various reasons. One of the issues could be the inbox providers you and your colleagues are using to view the email. For instance, Klaviyo Header/Link Bar blocks actually have 2 logos in the HTML, one for Desktop and one for Mobile. Some Outlook versions will ignore the styling to only show 1 of these logos and load both. Unfortunately, this is an industry-wide problem with Outlook. We have more extensive information on this in our Help Center Documentation. Additionally, if you’re viewing the email in your Gmail inbox via the Chrome or Safari browser rather than the dedicated Gmail app, this could also be contributing to the issue as Gmail Mobile Browser version does not render media queries. Media Queries are a form of CSS (a styling code language) that is responsible for how elements render on mobile sizes. 

To attempt to minimize the possibility of duplication by using an image block with a links only header block on top of or next to it, both hyperlinked. This header block would only need to be created once, and then can be saved. Once the new header block is saved, it can be dragged/dropped into any template and replace the old header. Finally, I would advise against forwarding your emails as this will cause display issues in your emails as mentioned in this similar thread. 

I can see from your colleague’s previous support inquiry that you have used our suggestion to use a hyperlinked header block image and it was helpful. I would also suggest ensuring your images are turned on in Gmail so it does not ask you if you’d like to ‘display images’ at the top of your message.

Finally, I’d suggest investigating tools like Litmus or Email on Acid to test your messages on various devices. Additionally, Litmus wrote an insightful article to further explain Rendering Differences in Microsoft Outlook Clients. There are other users who had a similar issue that I’d advise looking into as well to gain more insight into this!

Thanks for participating in the Community!

-Taylor