I saw that you've tried at another place too: https://moodle.org/mod/forum/discuss.php?d=405359#p1677102. Why don't you start your own thread giving full background information. Riding piggy-back on other discussions is not well received in forums.
If it is a caching issue, Hardware and performance forum could be relevant, or even the General developer forum.
BTW, I am just a community member, can't delete nor have the intention to delete posts. The usual practice of the moderators here is to move discussions between forums or in this case, split the "branch".
No harm. Expecting the sub-thread will be split, gave it a new subject line.
What is your platform? Windows? Linux? Which flavour/distribution/version? PHP? Other caching mechanisms utilized? Redis? Memcache(d)? (reverse) proxies (Varnish? Nginx? ...)
And also we need much more details about the software. See my earlier post (the one with many question marks). You want a specific answer to a specific technical problem, right? Then we have to be technical, sorry!
As already said, I don't know this Javacache corner. The idea is for you to provide enough information here so that a specialist can give advice.
If the issue is not a plugin on my Moodle site, then is it something else? Or is it a Moodle 3.10 occurrence?