I haven’t noticed this “Linking” issue before but it still could be something I’m doing wrong…or maybe a bug in iC 8.52.3 . When I link an object a second time the first link “drifts” away from it’s original point.
https://youtu.be/x4c_h4l-MoQ
The video is Private, Mark.
Thanks for the heads-up!!! 
It’s better not to unlink. Just choose the new link.
It does not work either…
Yeah, they messed it up… If you look closely, during unlink the link offset key is not created to fully bake the position. So after unlinking, select first offset key, and use Split with right mouse click. Then copy it and paste to the key where you unlinked the object.
In other words…
Ah, so it is messed up! Not me this time 
I’ll try and see if I can figure it out from you explanation …THANKS!!!
Also, am I to assume this is iC version 8.54? I’m using 8.52 and I don’t see that “Split” function. 
Although the Copy-Paste" function seems to do the job.