andyp05

More info:

I put the plugin in TEST mode and all css/js files load correctly.
I turned TEST mode off and turned combine OFF. All files required a 301 redirect.
I turned TEST mode off and turned combine ON. All combined files required a 301 redirect.

I confirmed I am running 1.3.6.1. I edited the functions.php to add the lines you suggested, I cleared the cache, disabled SGOptimizer from siteground, purged Cloudflare cache, and cleared the browser cache. I get the same result. This is only happening on the combined files. All images are loading without the 301 redirect. Any ideas or things you would like me to try?

Thanks for your help.