Navigation problem with unifiednlp-backend mozilla

…using e OS on my S4 mini (serranoltexx), quite satisfied so far… Since the latest OTA-update, now running System 0.6-2019052310969, the network-based (battery-friendly) geolocation service = mozilla-backend became massively unaccurate (+15km !!! from center). I tried to configure another backend (apple/deja-vu/gsm), the effect was obvious: 20 meter accuracy ! Any Ideas, why Magic Earth possibly “quit workibg together” with mozilla geolocation service / mozilla geolocation became so inaccurate !??