Cflogin imbulit function not working

First, a question. Do you mean IsUserInRole instead of IsUserRoles ?

The issue you're facing tells me something. Your application might not be maintaining session from one page to the next. If so, then the things to look at are the settings in Application.cfc. 

Suggestion:

• Your application should make use of an Application.cfc file (if it does not yet do so). A simple Application.cfc, such as the following, is sufficient:
  

  <cfcomponent>
  <!---*********** Make sure to include the next 5 settings ***********--->
  <cfset This.name = "MyApplication">
  <cfset This.loginstorage="Session">
  <cfset This.sessionmanagement="True">
  <cfset This.sessiontimeout="#createtimespan(0,0,20,0)#">
  <cfset This.applicationtimeout="#createtimespan(2,0,0,0)#">
  
  <cffunction name="onApplicationStart" returntype="boolean" >
  	<cfreturn true>
  </cffunction>
  
  <cffunction name="onApplicationEnd">
  <cfargument name="ApplicationScope" required="true"/>
  </cffunction>
  
  <cffunction name="onRequestStart">
  <cfargument name = "targetPage" type="String" required="true"> 	
  	<cfreturn true>
  </cffunction>
  
  <cffunction name="onRequestEnd">
  <cfargument type="String" name = "targetTemplate" required=true/>
  </cffunction>
  
  <cffunction name="onSessionStart">
  </cffunction>
  
  <cffunction name="onSessionEnd">
  <cfargument name = "SessionScope" required="yes"/>
  <cfargument name = "AppScope" required="yes">
  </cffunction>
  
  </cfcomponent>​

I'm not aware of any change in functionality for those functions in the last few releases, let alone cf2016 (which is unsupported and was last updated in March 2021. Since then cf2018, cf2021, and cf2023 have come out, as you may know.)

I suspect your problem has another explanation, not the "functions not working", but "something else about your code or configuration making it look like 'those functions aren't working' ".

I would recommend you resort to traditional debugging, to confirm the code you are asking about is even being called. You could use cfoutput, cfdump, cfabort, cflog and the like. Or with the right tools and configuration you can even do interactive step debugging, line by line. That's way beyond trying to explain here, of course.

Let us know what you may find.