BuddyPress.org

Hi, this is my current version:
– Latest WordPress 4.8.2
– Buddypress 2.9.1
– Bimber WordPress Theme 5.0.2

Problems: Everything is fine except for the uploading and cropping part. The cropping handle was nowhere to be seen, like a tiny little pixel on the screen but when I hover the mouse it appears the cross cursor. And of course, unusable in everyway. So below is my problem: big avatar remains, a tiny black dot on the top left corner.

Anyone had this same issue please help, I would be so thankful. Bimber is probably not the problem to all of this because the theme itself is really light-coded and every other function went really well. There is no conflict on other plugins since I only use plugin for contact or such, not any involving JQuery or anything.