I have approval process when i submit it to approval.. Approver is receiving the bell notification but after approving/rejecting the record intial submitter is not receiving any bell notifications.. Privously it used to work for me 

How to show Visit Status on Salesforce map schedular

Recently used accunts are not showing up under search.

@isTest
public class RemovePermissionSetsTest {
    static testmethod void createTestData(){
        Test.startTest();
        List<User> usersList = new List<User>();
        User user = new User(
            ProfileId = [SELECT Id FROM Profile WHERE Name = 'System Administrator'].Id,
            isActive = true,
            LastName = 'last',
            Email = 'test@test.com',
            Username = 'test@test.com' + System.currentTimeMillis(),
            CompanyName = 'TEST',
            Title = 'title',
            Alias = 'alias',
            TimeZoneSidKey = 'America/Los_Angeles',
            EmailEncodingKey = 'UTF-8',
            LanguageLocaleKey = 'en_US',
            LocaleSidKey = 'en_US');
        usersList.add(user);
        insert usersList;
        System.debug('users: '+usersList[0].Id);
        
            PermissionSetAssignment permissionSetAssignment = new PermissionSetAssignment();
            permissionSetAssignment.PermissionSetId = '0PS6g000004ULGa';
            permissionSetAssignment.AssigneeId = usersList[0].Id;
            insert permissionSetAssignment;
        System.debug('permissionSetAssignment: '+permissionSetAssignment.Id);
        
        usersList[0].isActive=false;
        update usersList[0];
        System.debug('users update: '+usersList[0].Id);
       
   
        Test.stopTest();
    }
}
 

I have approval process when i submit it to approval.. Approver is receiving the bell notification but after approving/rejecting the record intial submitter is not receiving any bell notifications.. Privously it used to work for me