iampkuhz
in `BlurLayout.setHoverView(viewHolder)` will override viewHolder.onClickListener, you should set onlick listener after `setHoverView` and don't forget to add BlurLayout.`dismissHover()` function in onClick you can find BlurLayout source to see what's going...
Build Tools, Revision 23.0.3 fix this bug, I have try and sucess. http://stackoverflow.com/a/36322996/4856869
@yvaskov Backend: [v6.6.0-beta](https://github.com/blockscout/blockscout/tree/v6.6.0-beta)
@yvaskov change the front-end to the latest version but the problem still occurred 
after upgraded the backend version, this bug was fixed.
faced with the same problem. Fortunately, the system recovered in 5min.