Importing json file keeps loading

Hi guys,

Just downloaded the pro version, because i have some trouble with my sidebars after installing a new theme. So i thought import/export would help me out.

Here’s the problem:

When I try to import a json file, the window keeps showing the loading-icon and nothing happens. In the console (google chrome) it gives me a javascript error:

Uncaught TypeError: undefined is not a function admin-scripts.js?ver=4.0:6

(anonymous function) admin-scripts.js?ver=4.0:6

m.event.dispatch jquery.min.js:3

r.handle jquery.min.js:3

m.event.trigger jquery.min.js:3

e.event.trigger jquery-migrate.min.js?ver=1.2.1:2

x jquery.min.js:4

b jquery.min.js:4

Can you help me out here?

Thanks