>As suggested I reset to defaults and then installed the LaTeX bundle
again. The Bundles -> LaTeX -> Preferences... command stopped
functioning but TeXShop no longer opens when type setting. After
several restarts the Preferences command has resumed functioning and the
TeXShop issue remains fixed. This means that currently all my issues
have been resolved. Thanks!
It seems I spoke too soon. TeXShop has now started to open again when I type set and view files. I don't know what I could have done to cause this so I'm not sure how to have you recreate this behavior. I have noticed that it is opening the .bib file from my project. I wonder if maybe the bibtex interface also refreshes the viewer somehow?