Unable to Transfer Kerbals

[DStaal]

I'm running a very heavily modded install, but this is specific to one station, as far as I can tell.  I have one station where I can't transfer Kerbals out of the station core via stock means: If I try, I will get the error message 'This is the source part', and the transfer denied.  This mostly happens when I'm trying to transfer out of the station into various docked ships - I can transfer the crew internally within that station, but any attempt to transfer them out of the station will dump them into that part instead.  (If they aren't already in it.  If they are, or the part is full, the transfer fails.)

Attempting to transfer them out with Ship Manifest works - but duplicates the Kerbal, leaving them in *both* the station's part, and the ship I've transferred them to.  The part (from Near Future) has no hatch so I can't EVA from it, however I can EVA from other parts on the station and transfer Kerbals that way.

Here's a zip of a log: http://magehandbook.com/owncloud/index.php/s/soLycYV0lufemqa

The log contains me trying a transfer using Ship Manifest, and then me launching a (slightly modified) version of the station, crewing it, and then trying to transfer in the new station - and failing.