Thanks for responding. I have functions to Add Custom Fields to FooGallery settings, and a function that Adds the Version number to the Child Theme (cache busting). None of these functions utilize the Filter generate_logo_title.
Thank you so much for identifying the solution for me! WOW! This is a site that I rescued from another Hosting Company that had originally done the Website Development in 2014. Unfortunately, their team allowed the site to get HACKED. I pulled it away from their Hosting to SiteGround Hosting, cleaned up the hacked files and code, and, OF COURSE, changed the Theme to GeneratePress. I never even thought to check the Site Title … because why wouldn’t I ASSUME it was there? You know what they say about ASSUME! (smile). Sorry it was such a trivial matter, but again, Thank You So MUCH for your help!