The Page-Remove method is not working intermittently. 

Page-Remove method is being used in the activities passing multiple page names. In tracer we added these page names in pages to trace. Once the step got executed still all the pages are being shown with data exist in them. This happens intermittent as the pages are being removed some times. We could not figure out the pattern. Due to this critical functionalities are getting impacted.

Alternatively we are using tools.getThread().removePage("TestPage");  to remove the pages in few places which seems working consistently.

Let us know if anyone has gone through the similar issue.

PRPC Version: CS 7.1.4 on Pega 7.1.9

Thanks!!