old hot cues not working in djuced 6.x

hi 

for some reason the existing hot cues that were created in djuced version < 6.x wont show up in djuced 6.x (i tried both 6.0.1 and 6.0.2). this worked fine in djuced 5.x (the hot cues were also created with that version). 

in the mp3s/flacs that have hot cues set, i can see that there is a djuced_cue_data field with some data in it. however as soon as i open the file in djuced 6.x and load it on a deck, this field gets wiped and no hot cues are shown.
i can set a new hot cue and this will re-populate the djuced_cue_data field in the mp3s/flacs metadata.