I know this isn't the most convenient response but would you mind submitting a ticket? It's possible our care team can reconnect you, or at the very least document this so we can investigate it.
Mine have also disappeared. I show no team work activity for months. I have submitted a ticket and the first response only reiterated what I told them. Not helpful. Second response was a simple "we'll look in to it". Then I received a survey request which seems my ticket was closed. The issue was not resolved. A friend and former (prior to the glitch) team member says she sees me on her team. What is going on?
The only thing I can think of is maybe it's a result of changing my email in the app?