Problem with Neighbours discovery on Aruba 1930 switch with LACP TRUNK

Hi,
I have two Aruba 1930 (VT1 and VT2) interconnected with a LACP Trunk on port #1 and #2 on both switch.

Each Aruba is also interconnected with other switches, but without LACP, just single link.

On each Aruba’s web interface I can see neighbours in the menu, included VT1 and VT2, as shown in pictures below:
VT1:


VT2:

On LibreNMS neighbours tab on each switch, I can see others switches but not the two connected through LACP TRUNK as you can see in pictures below:
VT1


VT2

If I look in fdb-table for each switch VT1 and VT2, I can see the other switch on port TRK1 (the name of the LACP TRUNK interface).

So why LibreNMS can’t understand that VT1 is neighbour of VT2, and VT2 is neighbour of VT1 ?

I have the same configuration (LACP TRUNK) between my Aruba 5406Rzl2 and some Aruba 6000, and it’s working fine.

Hope my explanation was clear enough to understand ! Thanks for the help.