Hi
https://forums.autodesk.com/t5/advance-steel-forum/error-in-shear-plate-connection-2017-1/m-p/671211...
I saw shear connection column stiffener issue on Forum.
It should be fix. Several year it still has same issue.
The problem is everytime user should put vaule himself to adjust shear plate length refer with beam flange thickness as well as front and back is not working in common sense.
I attached video for better understanding.