Not sure what was going on but I would do File > Open Folder and the contents of the folder would not load in solution explorer. I've gone through all the steps in this thread and only this one worked but it wasn't very clear.

Angad Kumar put me on the right path, but wasn't 100% based since the instructions were not perfect.

I deleted everything found in %appdata%\Microsoft\VisualStudio and that resolved the issue.