I can see you are new to the forum, so Welcome to ‘the family’ .
As NoiseRiser points out, those issues aint new, but wellknown - for now you will need to edit the BPM in Engine Prime. (you can move the beatgrid on the players, but if the tempo is wrong, then you’ll have to go to Engine Prime.)
Denon do have focus on the BPM-thing at this time., so hopefully they soon will (1.) give us the option to edit bpm on the players and (2.) get Engine Prime/ Engine OS to do a better job analyzing those files.