GVM scan doesn't find all my host

Hello,

I have installed GVM on kali. I’ve got an issue when I scan an IP range.

GVM only detects 20 hosts on a range where there is like 150 hosts.

I’ve created targets with differents type of alive test and I tried differents tasks with different Scan config (I only use OpenVas Default Scanner).

Did someone already reach this problem ?

Thank you !