Hey,
You can try to use the command "Beam/Column Joins". Then there should apper small arrows. You can click on them to modify the connection. If they don't apper the beams don't have the same endpoint.
Does that solve your issue?
To get the truss beams to look right you will need to select individual members (unpin) and drag them past the connection point, then in an elevation add Ref Planes and then cut the beams using the Ref Planes.
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