I think the framer blew it. Looking at the third photo, there was plenty of room to land that cross beam on top of the post and still have the beam traveling back land on it as well. I think the support block will probably hold it, but I would through bolt it twice with some nice heavy hardware.

Are you buying this house new? It looks like new consctuction. The plans probably show the beam landing halfway across that vertical post.

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Jim Robinson
New Mexico, USA