Hey Everyone,
I've been following this thread now for a couple days trying all of the troubleshooting steps provided thus far.
The user I'm assisting is also accessing the excel files through a shared company drive. I attempted adding the path to Trusted Locations but kept receiving errors, and adjusting settings in the Trust Center didn't alleviate the issue. I had also tried updating the Office apps and it still didn't alleviate the issue. I knew something was weird because I had no issues with the files during my own testing.
Today, I decided to do a complete uninstall/reinstall of Office just to be safe and to my surprise it alleviated the issue for us after a restart. We tested macros across multiple files and subfolders and everything was working as it should. Just wanted to share my experience in the off-chance it might help anyone else looking for answers.
Thanks,
Ken