EOM Boxes are missing in the EOM Page for users with Mobile setting is set NULL

CFA reported users (specially Operators) are missing the EOM boxes under the EOM page in INFORM.

I did some investigation and I found that the users are having the Mobile setting is set to NULL.

I updated the User Mobile settings field and asked CFA to confirm it works, they said it fixed the issue.

Code Used:

Select * from tbUser with ( nolock ) where UserID = 1248157

--Begin Tran --Commit Tran

--Update tbUser 
--set MobileSettings = '{"EntityId":5120,"EntityName":"04113 - Craig Road & Scott Robinson FSU","EntityNumber":"04113","EntityTimeZoneAbbrv":"PT","EntityTimeZoneOffset":-7.0,"UserConfig":{},"Configurations":[]}' 
--where UserID  = 1248157 

We had a call with Sree and she tested this on her side and confirmed the issue. Please check if any validation available for Signal Code using the Mobile setting in away that cause this issue.