Hi Michael,
I've sent the files to you. I think may be interesting to investigate.
The dimensions of the assy is not so big: less than 400 units.

Notice (in the imported iges) that when you select the long cylinder the 'ghost glued' parts will flash for a moment.
Delete the long cylinder and then undo. Now select again the cyl and the 'ghost glue' become clearly visible.
This is not the only assy with this kind of problems. I will try other experiments and ther report them to forum.
For now I am using the trial version.

Thanks for the support, this forum it is a great 'feature' of MoI!

Gianrico