I just got a Huawei MediaPad M5 and when I go to devices the add connected device button is greyed out but it doesn't show any device as connected. Looking at the calibre log it shows that caliber recognizes it as an M5, but Reading List recognizes it as an M3. The M3 is my previous device so I guess it means that I could still have items sent to the M5 but I would prefer to be able to use both.
Edit: I just connected my M3 and it doesn't show as connected in the devices tab. When I connect my Boyue T80S it shows as connected.
calibre_debug_log_20180709_204901 reading list doesnt recognize M5.txt