I have upgraded to Joomla 5.4.0 and php 8.2.28 but my students are struggling to get their results consistently, the system does not always save the answers so gives the student a zero result and the sometimes it does save the answers. When I and my developer test it it mostly works but on occasion it does not work. We have tried white listing the IP addresses but we cannot seem to recreate the issue to resolve, has other clients experienced anything like this and do you perhaps have a solution for me. We have been working on this for two weeks now without any luck. Please can you assist, see two images attached