Can't make to work merged L&R in more than 1 dualshock 4 at the same. GameCube

[rafaeoz]

Wierd bug. I mapped all four outputs with the merged preset on the bluretro.io.
But only one dualshock 4 work..and its random. Sometimes is the first i sync...now is the second one..and the third or if I sync a 4th dualshock 4 ...only one work( i have only 3 ds4 for testing) . And the output map it's working, because if i put a dualshock 3 in any of the four output work, and just one ds4 work. The bug is only with 2 or more dualshock 4 at the same time.

[rafaeoz]

update:
Only one of the ds4 ds4 work , Always the same one. I think is the first one I synced.
Even if I press the "reset" button , the device "remember" them. I don't know do a "hard reset" to test if its only happening with the 1 ds4 I sync.
All controllers working . I use them on my Ps4 .
I try a ipega and a ds3 and all work great . But I don't have now another "same" controller like I have Ds4 to sync at the same time.