Hey, thank you all for trying to help.
Please see attached pics of what happens if i plug each of the fans into position 1 of the hub only.
pic 1- LL140 (works fine)
pic 2 - LL120 (rainbow with blue spot..)
pic 3 - other LL120 (blue spot only...)
Tomorrow my LED hub and new LL120 replacement fans are arriving, hopefully will make a everything work