Since upgrading to 9.3 I've had significant lag, 3+ seconds, in cadence readings on both the new old Garmin sensors. This has continued after upgrading to 9.4 yesterday. For example I can free wheel for a few seconds and cadence reading will be 90+, I then pedal again and I'll see a zero reading for a few seconds before it finally registers a sensible reading. This didn't happen on any previous firmware versions.