There is no display on Apple Thunderbolt display, when Daisy chain connect with six LaCie Little Big Disks.

Hi, Everyone,
I have aquestion with Thunderbolt daisy chan.
I have six LaCie Little Big Disks and Apple Thunderbolt Display to make daisy chan and I got a problem.
I place the Apple Thunderbolt Display at the end of the chain, and six LaCie Little Big Disks infront, and Apple Thunderbolt Display does not show anything.
If I plac the dell u2711 (DP1.1) Display at the end of the chain, and six LaCie Little Big Disks infront , dell u2711(DP1.1) displays.
If I place the Apple Thunderbolt Display at the end of  the chain,and five LaCie Little Big Disks infront. Apple Thunderbolt Displays well.
Is it because the hardware limitation that Thunderbolt daisy chan can only have maximum 6 Thunderbolt deivce?
Apple Thunderbolt Display Should be DP1.2, why it doesn’t display?
My workstation running Windows 7x64 or Windows8.1x64
Thanks ,Myron

if you reduce the number of disks to 5 and the display works, I think we'll have your answer.

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