Logo has disappeared from menu

Today I was trying difficult logo sizes to see if I could find one where it’s not blurry. In the process, the logo disappeared from the site. The same behavior while the site was under development.
Actual Setting:
Appearances | Customize | Header Logo | Nav Centered + Inline Logo
The global navigation Home | Services | The Team | Contact us displays, but without the logo.
Expected Outcome:
The logo should display between Services and The Team in the global nav at the top of the page, but it no longer does.
Background:
So far I’ve
– Played with the various padding and spacing settings in Navigation in case that affects Nav Centered + Inline Logo.
– Cleared Hummingbird cache.
Suggestions? How do I know what size to make the logo so that it’s sharp? How do I get it to display as expected?