Title block

I made a title block with attributes in the model tab but I can't insert it in the sheet tab (it works in the model tab). When I try to insert it in the sheet tab, I get to set the attributes but the block doesn't appear. I've found an alternate way to make it work; I insert it in the model tab through a viewport and then I copy paste it in the sheet area.

I am able to insert blocks from autocad files into the sheet tab but I can't do it for any block I make with Draftsight. What is the problem?