ApplyRoutingRuleRequest not working CRM online

I created a custom workflow activity to apply routing rules to a case but it is not working and not throwing an error. I've found that this was an issue that was fixed in UR2 for CRM 2013 SP1(https://support.microsoft.com/en-us/kb/2963850), but was the fix also applied to CRM 2015?

Here's my code:

ApplyRoutingRuleRequest objrequest = new ApplyRoutingRuleRequest()
                {
                    Target = inCase.Get(executionContext)
                };
                OrganizationResponse objres = service.Execute(objrequest);