The signal strength indicator shows the video-feed signal strength only, NOT the control signal strength.
Besides that, even with 5 bars there can still be very short signal interruptions.
Manual flying appears to be much less sensitive to control signal interruptions.
Most likely there are control signal interruptions. Have a look at this thread:
and
Page 43 in the Mini 3 Pro User manual.
According to @vico (administrator) dd july 2023:
“Flight logs are not supported yet, will be added soon”
Augmented reality shows the home point and POI’s realtime in the video feed.