Ok - I cleaned up the entire Engine Prime DB and started with a fresh one. I imported my rekordbox.xml and this time the beatgrid came over. It seem to be pretty accurate. Even when importing dynamic beatgrids from rekordbox (i.e. Lil Louis - French Kiss). This doesn’t matter if I manually updated the beatgrids in rekordbox or took the ones analysed from the software (rekordbox) itself.
The only strange behaviour I was seeing is when loading the tracks into the player. It kept the beatgrid - which is good - and built the wavaform. But the playing speed in the player display weird values. Sometimes +85% which will give you surprising results when playing the track. I had to reset the playing speed of the track to 0,0% to be able to listenning to it correctly. Not sure if this is because of the imported beatgrid vs. the analysis Engine prime does.
That brings me to another question.
As the beatgrids were brought over from rekordbox but the waveform is missin, I have to analyse the tracks in Engine to get them. Will the beatgrid from rekordbos being kept or overwritten when doing the analysis? When I load the track into the Player the grid from rekordbox is kept. But what will happen when doing mass analysis is prime…