Hi @J Lew
I'm glad that you were able to resolve your issue and thank you for posting your solution so that others experiencing the same thing can easily reference this! Since the Microsoft Q&A community has a policy that "The question author cannot accept their own answer. They can only accept answers by others ", I'll repost your solution in case you'd like to accept the answer.
Issue: Trying to add web job in the azure portal, get frown face after selecting zip file
solution: So, today, on my first try, it worked. I was able to add the webjob. All I did even the slightest bit differently was to clean and rebuild the entire project, instead of just building the console app.
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