Unable to Mouse Over on a drop down

I have beenusing Katalon studio for few work flows of the website, it was going really well until I came across a drop down which works on a mouse hover and shows list of the drop-down. This drop down is java-scripted, a toggleable menu. Katalon is not able to recognized (No red box shows around it while recording)

Below is the info of of the drop down objects in two states:

Before mouse is hovered over dropdown


After mouse mouse hovered over dropdown


I have used both Mouse over and Click on the button but nothing happens. Although Log shows that it has been clicked or mouse over but drop-down does not fall or show any list.Object just get focused but nothing happens. I have to select a option from the list but list never shows up.

Please Help !