Today I attempted to make my wifi access point connect to Wifi and Sesame by my Android 8.0 device again,
and collected information.
As below screenshots, the app can connect to sesame by bluetooth normally.
I took screen record mp4 during operation and it's available here:
And during above, I took full log of device:
Strangely, this time it said "No Sesames Found" when I tried link access point and sesame (Yesterday at least it shows my sesame, and then link failed.... I don't know why symptom changed)
NOTE: As I wrote before, the wifi access point keep pulsing blue color, so actually it's connected wifi it seems.
Then I used another device HTC U10 (Android 6.0) I borrowed:
I installed sesame app and do same thing...
As a result, it's better... Though as same as HTC U11, after trying to make access point connect to wifi, it said "failed to connect,
when I make link access point and sesame, there's no problem!
Hope those information help your investigation...