Users can't see the fields we select
Make sure that the users that can't see the HubSpot fields in Gong have access to those fields in HubSpot. On the HubSpot side, access is given by your HubSpot admin.
Why is my call not visible in HubSpot?
If your call is not appearing in HubSpot, it could be that your HubSpot contact is associated directly with the deal, and not with an account. In order to connect calls with deals, Gong finds the contacts and their accounts and then attaches the call to the relevant deal.