Dude detects MT device adds it then removes it

hi,

Im having trouble with Dude, I let him scan /24 network subnetted with VLSM and has 13 /28 networks, 2 /29, and 7 /30 networks.

DUDE discovers just small part of whole system. Sometimes whe I start discover again it finds new MT box but after adding to the map it remove it from the map after a second .

I use default setting for scanning .

EDIT:

CORRECTION, after several attempts, now dude discovered whole network. ?