[tor-relays] Relay first seen reset on Tor metrics

The "first seen" date on my relay A00E3AAF5A24DC69740FA7A3A1C4A0ECB7972722 Got reset today while I was at work. It's not a problem and I don't particularly care, but is there anything that would cause this? IP hasn't changed, Tor version hasn't changed, etc. Thanks, Zachary