I have loaded a track that has been analyzed with rekordbox and turned the sync function on, but the sync operation is not performed. The SYNC button's LED is lit.

The sync operation may not be working for one of the reasons below.
-Was the track loaded in the folder browsing mode? The sync operation can only be performed if the track is loaded in the library browsing mode.
-The sync operation is not possible if slave deck's BPM is less than the master deck's BPM, even if the tempo is +16%. In this case, the message "OUT OF RANGE" is displayed on the LCD.