Need some assistance regarding the core functionality of 'FSM Mobile' client’s 'Task Note List'. 
One of the customers (Ericsson) reported the following issue on the PROD environment. 

"The mobile app is showing task notes in what appears to be a random order instead of being chronologically ordered from newest to oldest.  It shows , with notes shown in the order - 1 hour ago, 4 hours ago, 2 hours ago, 2 hours ago"

There were no configs or client scripts found that could relate in customer solution and in core environment it's not replicable. Could anyone please share inputs of how this sorting mechanism works in the FSM mobile core?