I set up flutter and running any flutter command, including flutter doctor results in

Error: The Flutter directory is not a clone of the GitHub project.
       The flutter tool requires Git in order to operate properly;
       to set up Flutter, run the following command:
       git clone -b beta https://github.com/flutter/flutter.git

Git is installed and running git --version returns git version 2.20.1.windows.1.

I've tried installing Flutter through the ZIP on flutter.io, as well as cloning it through both
git clone -b beta https://github.com/flutter/flutter.git
and
git clone -b stable https://github.com/flutter/flutter.git,

restarted my laptop after each and still get the same error after running flutter doctor.

I've never had this happen to me before, and would greatly appreciate any help. Thank you