Exposure detected at 8ft apart for more than 15 mins (Android version 9) app v53

(test case 31) device 1: iphone 8 +diagnosed. device 2: Samsung Galaxy S8 OS v9 app v53 (UUID: Mm_s8-17) COVID 19 Exposure notifications = On Bluetooth = On Notifications = on

July 15: device 2 was exposed to device 1 at more than 8ft for more than 15 mins July 16: no exposure detected/COVID checks were being done. Upgraded app to version 53 @ 249pm July 17: 625 am, no push notifications / no exposure detected (app running in background) no COVID19 checks for July 17 closed app, reopened. home screen displays You've been exposed COVID Checks for 626 am shows 1 key provided and 1 matched key

Expected behaviour: no exposure detected

该提问来源于开源项目：cds-snc/covid-alert-app