ZBrushCentral

Import brushes, material and obj bug / crash ??

Hello.
I have a question that is giving me a big headache already searched the internet and nothing.
when I click the button to import files such as .obj, brushes, materials, etc. Zbrush stops responding, even that does not matter, just by clicking the button the program has stops responding. button to import will flash the remaining time until shut down the program.
I leave a video I made to see q happens. I then try to click in other menus to open and nothing works.
The program operates normally only when I click on the buttons is starting to give problems …
Greetings and I hope someone help me.

//youtu.be/7GS8tiXqBdM