Two loading dots in Portal.

[Taaha M]

After Yokohama upgrade I am seeing two loading dots at two places while switching from one page to another in Service Portal. Why is this happening?

[Sindhu12]

Where you able to fix this issue? 

[Arun Kumar D]

We've logged a case with SN and below is their response. Hopefully this will solve your problem.
Solution Proposed:
Checked in OOTB and able to reproduce the issue. Further, found we are having an existing PRB for the same issue. PRB1821030: 
https://support.servicenow.com/problem.do?sys_id=e7071bc193a55210a3ecfdb86cba109b
. 
The PRB1821030 has been fixed in the latest version of the EC plugins.
Please upgrade these plugins(Employee Center and Employee Center Core) to the latest version available to get the fix of the issue.
To apply the fix on your header widget, you will need to add the lines below in the CSS section
//----------This one already exists ----------------------
// Hiding the loading indicator from Header Menu base system widget
div.header-loader {
display: none;
}
//----------PRB1821030 fix start ------------------
li.header-loader {
display: none;
}
//----------PRB1821030 fix end ------------------
I added the same in my OOTB instance and after that the issue got resolved. Please see the attached screenshot for your reference to know where to add this CSS line.