Problem in meshing after using “Share Topology”

[adib.aktab999]

I have disect the geometry into parts, so that I can do sweep meshing,

I can do sweep mesh as you can see on the photo, and the mesh quality also good.

As my body has multiple parts, I have used share topology which I have enabled from the component property. But when I try to do mesh, I saw all the bodies aren't sweepable.

What is the reason of this??
How can I resolve the issue??
I couldn't not add inflation in my geometry, when I select the whole body in the geometry scoping method, it shows "x" on it's left side, you can see from the first picture.
How can I add inflation and do the hex mesh??

I have tried watertight meshing with the disected body and not used share topology in space claim, but in watertight I have used the share topology
 option and do the poly hex-core mesh, I have also add inflation from boundary layer and after running simulation it show "0 flowrate from the outlet", I have used pressure inlet when I input gauge pressure= 0Pa, and at pressure outlet, gauge pressure= -4000Pa, it has to come 60-63L/min flow rate from the outlet.