Update: As of 3:30 PM ET we are now receiving app updates through the Store on our phone. Other reports are coming in as well confirming the fix.
All morning we have been receiving tips from users via email and Twitter that the Windows Store is no longer reporting app updates to users. Case in point is the new Slack (beta) update, which we reported on earlier, but is not showing for many. The same applies for yesterday's rather critical Insider app update that matters for Lumia 950 and Lumia 950 XL owners.