"gam print aliases 2>$null" not Showing All Aliases

Question

I need to list all aliases in my domain (groups and users aliases) using Google GAM and I'm using the command below:

gam print aliases 2>$null

However, it's not bringing me an alias (l.suporte@domain.com) from a group that I can see through the command:

gam info group si-suporte

Output:

Group Settings:
 id: 03hvwe3312ki
 email: si-suporte@domain.com
 name: SI-SUPORTE
 directMembersCount: 8
 description: L.SUPORTE -SI
 adminCreated: True
 aliases:
  suporte@domain.com
  l.suporte@domain.com
 whoCanJoin: CAN_REQUEST_TO_JOIN
...