PIA pages become unresponsive after being idle for 10 minutes. PIA_servlet logs indicate SE_IDELTIME

The issue appears to be happening throughout the application. Example: Go to the Integration Broker Nodes page and search to display all the nodes. Open a node, then return to search. Let the page site for 10 minutes (developers indicate it happens in less time but I haven't been able to reproduce without letting it sit for 10). Try opening a node. Nothing happens. We have been seeing this issue in all of our HCM 9.2 non-prod environments. We are on PeopleTools 8.55.25, Tuxedo 12.1.3.0.0 RP108, WLS 12.1.3.0.0. Push notifications are on but not configured with the Process Scheduler. We