This happens when the version of Chrome on the handheld is out of date and needs to be updated, the fix is to update Chrome on the Android device.
Situation #1 - Using the Chrome Web Browser to connect to riteSCAN 8 and getting Unhandled Exception errors immediately when the Login Page loads.
Situation #2 - When the Chrome PWA is installed by using this guide: https://support.ritesoft.com/a/solutions/articles/16000149888
In this situation, the quantities Picked/Received/Entered into riteSCAN are not updating the quantities required or quantities already Picked/Received in modules within riteSCAN 8. This was particularly evident in Order Picking, the quantities being Picked were not updating the quantities on the Items tab.