I noticed today I was having to use fingerprint unlock every time I wanted to access my 6a, even though normally I use Smart Lock to keep my phone unlocked when it’s near my Bluetooth watch. I just checked through the settings and Smart Lock has disappeared, as has on-body detection. Has this happened to anybody else?
Check again it might be back on your phone? I just looked at mine & Trusted Devices is there, not sure if there was another update or maybe it came back after I restarted my phone in the last few days.