SWQL about IPAM Subnet not working

Hello all,

I updated recently to version 2020.2.6.

I'm trying to make a very easy SWQL sentence about Subnets in the IPAM module, to get the information related with each subnet.

Using the default one, that you get in SWQL application, I don't get any result

If I use only a field, getting the most simple request... I don't get anything

It is happening the same with tables as GroupNode, GroupNodeAttr or GroupReport...

In order to advance, I'm using the table GroupNodeDisplayCustomProperties, where I have 3347 entries with the network address and description.

Do you know if I am using the proper table? 

Thank you in advance and regards