Endnote 8 and Mac Sierra (10.12.4 (16E195))

I have a major issue with Endnote 8 on my new Macbook Pro.

It is freezing all the time and I have to Force Quit application. I am doing this now every 5-10 minutes which doesn’t suit my productivity.

For example, if I click on reference with PDF it may open PDF or it may just freeze. Same if you move reference to a group etc.

Sometimes, it will just freeze because software is open.

I even reinstall my 2 week old MacBook to factory setting and reinstall endnote without any success.

I am wondering if anyone is facing same problem and is there any solution.