Site Name Appearance Issues on Mobile Search Results

Has anyone experienced issues with the appearance of your site name in search results for mobile? The Wordpress site name, content sitewide & schema is spelt correctly but the mobile results still show incorrectly (above the meta title). Developers guide mentions it uses a number of source's from the site's homepage to determine site names but this is selected dynamically. Any insights on how you can control how the site name is displayed?