Hi @PatrickHalloran ...
By chance, are you using a link to sign in to Canvas that you had previously bookmarked in your web browser? For example, did you bookmark a specific course or a specific page within a course, and you are using that link to sign in to Canvas (which would then take you to that page instead of to the Canvas Dashboard)? You might want to create a new bookmark in your web browser that just goes to:
https://SchoolName.instructure.com where SchoolName is the name of your school
I'm not 100% sure this is what you are experiencing, but it was my initial thought as I read through your question. Keep us posted here in the Community...thanks!