I upgraded to unity 2017.0.f3 and all script links are not linking

Hello,
I upgraded to unity 2017.0.f3 and all script links are not linking to the script anymore.
I have built several scenes already and not sure how to fix this issue. There are no errors in the console (only warnings), reimporting all assets seems to fix the issue temporarily, and suddenly all links are broken again.

there is only one error that appears and that is when reimporting all and appears only once reimporting all is finished; and that is blender cannot be found.

Any assistance? should I downgrade unity?

You should post the specific error you’re encountering. Such as a screen shot of the error.

@Joe-Censored Please check the uploaded snapshots before and after clicking. (The first photo is before, the second photo is after). I would appreciate your assistance.
It seems linking breaks right after I hit play

What errors did you have before you hit play? (you have clear on play enabled) I’ve only encountered this when I had script errors. For example if you were using something deprecated in any of your scripts that has been completely removed in the new Unity version. Try exiting Unity, relaunching it, and take note of the errors in the console before you clear them.

I think its because some of my assists were from a blender file and I had blender uninstalled. Nevertheless, upgrading to next unity version (2017.2 beta) solved it to me -the way I figured it is that many of my assets went missing but this time I did not have the blender cannot be found error. We could consider this case closed. I appreciate your time!