I have a PC Windows 10, XDJ-RX with 2.10 firmware and Rekordbox 4.2.3 (64bit). When I browse my RBox library from the linked XDJ and load a song, then sometimes I also get a E8306 message, but other times it's loaded and I can play it. However I don't see the small and big soundwaves, but I do see the hot/memory cue points. When I press the 'quantize' button, I see the following message.
"rekordbox track analysis required for QUANTIZE feature."
But track is already analysed in Rekordbox. Also the drag&drop feature in Rekordbox doesn't load the track via link.
Now I tried the same on a Surface Pro 4 (wireless) and now I see both the small and big soundwaves! I'm albe to use quantize and also the drag&drop feature from Rekordbox! Same OS, same version of Rekordbox, same home network, but it just works! I'm happy the expensive XDJ-RX isn't broken. It must be something with my PC, but I cannot pinpoint yet the root of this problem. PC has been reinstalled quite recently. Any suggestions?