Visualize.js 6.3.0: Dashboards, export dialogue is unusable, reason of this, how to fix.

Question:

I would like to utilize Export button in my Dashboard's dashlet via visualize.js. When I designed a JavaScript part of my solution, executed it and tried to click the export button I got the result that you can see in the screenshot below:

It appears that the menu is shown distanced from the Export button (instead of being shown below the button) and looks a bit different than in original JasperReports Server web user interface, the menu items are not clickable.

What is the reason of this? How to fix this?

Answer:

The reason of this behavior is the bug that was introduced in the v. 6.3.0 of the software. This bug is expected to be fixed in the v. 6.4.0 of the software.