Copy & Paste between Models

I’ve always been able to copy elements from one model into another by simply using the copy and paste functions. It seems that Sketchup 2014 doesn’t want to do this all of a sudden. Any ideas? Am I missing something?

You should be able to copy/paste within an SU version or forward but not backwards.
In other words, you can copy and paste between Sketchup 2014 models or SU2013 to SU2014 or SU2013 to SU2015 etc but not from SU2015 into SU2014 and so on.

If you can’t copy paste between your models in the same version then there is a problem to find.

Thankyou Box - VERSION BLUES! All fixed.