Major watt and cadence drops during bambino fondo

While riding in the short fondo today I began to experience massive swings in watts and cadence to the point where both would reach zero and I’d come to a complete stop. I was peddling at a cadence of 80 and watts around 175 and with no reason cadence and watts would start to drop. I sent out a group chat and one other person said they were experiencing the same problem.

No change in my setup and location from prior rides. Running Zwift app on windows 10, garmin Bluetooth speed, cadence and heart rate monitor.

Any one else having the same problem today?