Hi @topsbog1!
No, reinstalling the application doesn’t affect the workspace(s) containing your projects. You can even have multiple KNIME installations and multiple workspaces at the same time and use them with each other however you like.
You may also want to try updating again today. Yesterday we fought with a nasty upgrade bug that broke people’s AP installations, so we disabled the upgrade from 5.4 to 5.5 until we had a fix. We finally found one late in the evening and re-activated the upgrade path again.
Hope you’ll enjoy AP 5.5!
– Leo