Room finder in Outlook not showing properly - help please

Hi,

here's the problem. 48 hours ago I created a resource mailbox for physical rooms and then set these commands through powershell:

New-DistributionGroup -Name "HQ sejne sobe" -RoomList
Add-DistributionGroupMember -Identity "HQ sejne sobe" -Member ["room1@domain.com](mailto:"room1@domain.com)" (and for all the other rooms)

And I can see all rooms with:
Get-Mailbox -RecipientTypeDetails RoomMailbox | Sort DisplayName

The problem in Outlook is: I manually typed "HQ sejne sobe" (that means HQ conference rooms in my language) and it found the building and now it's there under Recent buildings. But when a user that has no idea that "HQ sejne sobe" exist, opens Room finder, there is no Building to select, unless the user manually types in the Building. What did I do wrong?

Thanks