Incomplete rekordbox information when browsing en selecting through "folders" on nexus

When loading a track (from usb analyzed by rekordbox 3.0)  by "browse " on both of my cdj 2000 nexus players  (newest firmware) waveform , and bpm is displayed instantly....UNLESS i click browse, and select "folder" (instead of key, genre, track, of artist) to search and select tracks.  Then, the smal waveform and bmp is instantly there but the big moving waveform doen't appear.   Sync function is selectable but doesn't work and a "recorbox anayis is requirerd" warning appears...

I tried this with several usb devices. Even a stick with just 4 tracks (analyzed) gives this error,  Also on the linked deck.    Select the track by artist,  No problem, select the same track by folder - > no waveform....

Any help?

Tnx!

Stijn.