Hey @TDaley! Yes, I’m currently working on a native solution for Webflow’s tabs. The problem lies in the fact that the content within the tabs isn’t rendered until that tab is opened but the map’s size is determined by it’s container, which at that point hasn’t loaded, so it sets it to it’s fallback size.
In the meantime, before the native solution is ready, you can add this additional script to your page/site’s custom code and add the attribute ‘epic-map-resize’ (doesn’t need a value) to the tab link for the tab that contains the map. If you continue to have issues, just let me know!