Wow, I wrote a reply and the forum told me my submission failed… perfect.
James,
Thank you for responding. Unfortunately neither suggestion was fruitful. I enabled Twenty Sixteen theme, cleared browser cache, no dice. Issue still exists so I think that rules out my theme’s functions.php.
Same thing with CONCATENATE_SCRIPTS. I set it in wp-config.php, cleared cache, logged back in, issue still there.
In the “Network” tab of the Web Developer tools, no 404s or err GET requests. All the JS/CSS appears to load.
In the “Console” tab, I see no errors, JS, CSS, or others.
Unfortunately I don’t know enough about JS to Debug this issue further.
Thanks again for your help. Any other suggestions?