I've tried flying in several locations to eliminate the possibility of environmental interference.
Almost immediately after launch the app switches to Atti mode even with 10+ satellites acquired. P4P then drifts pretty badly.
Today, I can't launch and the app reads, "GPS encounters communication exception".
Looking through the flight logs, I'm getting an error that reads, "GPS Position NoMatch" even if when the logs are showing 10+ satellites acquired.
Images attached. Thanks for any input.