WHM post-update issues?

hey guys, circling back on that internal server error nightmare i had last week after the cPanel update. thanks to some of your tips, i managed to get the main site back online, but now i'm seeing some really strange issues with other services and general server performance. it's like the update partially worked but left some things hanging.

specifically, i'm seeing intermittent issues with certain cron jobs failing and some PHP applications timing out even though they were fine before. i've checked the standard apache error logs and php-fpm logs, and while there are some warnings, nothing obvious points to a direct cause. i'm starting to wonder if it's something deeper within the WHM configuration that got messed up or isn't optimized for the new cPanel version.

i've tried restarting apache and php-fpm multiple times through WHM, and even re-ran a 'yum update' and 'upcp --force' just in case something was missed. i also checked the easyapache4 profile to ensure everything looks correct, but i'm no WHM expert when it comes to deep-diving into post-update validation.

my question is, what are the common WHM areas or specific config files you guys usually check or re-optimize after a major cPanel update, especially if you're seeing weird performance or service stability issues? are there any specific WHM utilities or commands i should be running to check for inconsistencies or apply recommended post-update settings? any advice on specific WHM modules or settings to review would be super helpful. thanks in advance!