strange behavior

Hello,
I am trying to understand this behavior of Mathematica, which is causing me quite some trouble.

When I generate the function tf3, all my variables are moved to the space: ParallelCombinePrivate`
I suppose it is something related to parallel processing, so i tried to disable as much as I could from Evaluation>Parallel Kernel Configuration, but this did not help.
Any Idea what I can do to solve this?
Thanks
Roberto

tfnum = (gf - gm + Cf s) Yz
tfden = (go + Cl s) (Ci s + Yz) + gf (gm + go + (Ci + Cl) s + Yz) + 
  Cf s (gm + go + (Ci + Cl) s + Yz)

I doubt it will be possible to say much without the actual code you are using (as opposed to a screen shot).

Hi Daniel,
thanks for your remark.
The two main functions are reported at the bottom of the post, here is the full code.

Okay. When I evaluate the cells they all behave as expected, in Global` context. So I’m afraid I have no suggestion other than maybe check your init.m file to see if anything might be messing with context.

I suspect this is the same problem discussed here or here, try turning the Suggestions bar off.

Hello Ilian,
thanks for your suggestion. I have in the meanwhile updated to Math. 10.2 and the problem looks solved now. However I ALSO disabled the suggestion box, just to be sure :wink: