Stuck.

I'm trying to run 0.97 in Windows 10 latest version.

Node Editor comes up OK with all the normal buttons New, Load, Save, Apply Run, Step.

And all is well if I load the attached file strainer 01.nod


But, when I load either strainer 02.nod or strainer 03.nod all the buttons are blanked out except New, and Load.

I suspect that I've created this problem by trying to use the RMB copy and paste function with the Macro feature the wrong way.

Anyway out of this mess outside of starting again?

And is there a specific order order in which the RMB copy/paste/macro system should be used?

Mike.

EDIT.
Tried strianer 03.nod in 0.96 no good.
Tried in 0.95, buttons back so could run and save. Saved with new name but still no good when loaded into 0.97. No Run, no Save.