Kibana Visualization UI issue - Sidebar elements overlaps each other (Kibana Version 6.2.2)

In one of our use case we have metrics title's with more number of characters due to which side bar is not working properly as shown in image .It is overlapping each other as shown in screen shots

We have to manually drag sidebar to right side for adjustment everytime after landing on this page .

On which browser is this? And whats is the size of your window ? I tried it on development env - 7.4.0 and it doesn't exist there.

Thanks
Rashmi