The only time you use the "Save" function in Teamwork is when you are creating drafts. No exceptions. If you're saving, you're creating a draft (or drafts) and working on a draft - consciously or no. If you then sign out, your Draft will be orphaned.
When signed-in to an ArchiCAD Teamwork project, you must use the Teamwork Menu. Maybe you could reinforce this behaviour with a custom Work Environment.
Maybe Graphisoft should create one.
Think Like a Spec Writer
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