I've got a Galaxy S10e and I'm using a Garmin Vector 2s (single-sided power meter). The power data stopped getting reported by IpBike, and doesn't even show up with the IpSensorMan as it only shows the Cadence being reported by the same device.
I've tried resetting the data on the app, resetting the data on the ANT+ Plugin (OS level app), and a variety of other items.
Curiously, a workaround that I just discovered seems to be to use IpWatt which immediately tracks the power data, and then switching back to IpBike shows the data and the Power gets tracked afterward.