Joining Structural Deck Floor and Beam

[jvlachGNGL4]

Does anyone know what is happening when I join the floor with a structural deck and the concrete beam it freaks out the graphic as seen below.

Before joining

After Joining

[barthbradley]

Let's take a look at it. Post your project here. 

[jvlachGNGL4]

See attached.

[barthbradley]

Switch Join Order

[barthbradley]

...or is this what you want?