buttons gone bugged

For some reason the next button in intro03 and quarters01 is not doing their job any more and locks the 8-dir move of the eye thingie. After a couple hours o trouble shooting I found that it all goes working again if I reverted Construct 2 back to v.79 but now I can't open any newer capx (insult to injury)lol

any suggestions?

here is the Construct 2 file:Starborn capx file

And the demo page:Starborn WIP