We did not face such problem before, so I can’t give you a solid answer. To be able to help we need to see the problem and explore it.
It can be a conflict between 3rd party plugins or an effect of additional customization in files. I’ve asked to clear cache for a case if there was a problem of some sort and it was cached, now when it is not visible for me as for new user, some your old users face it cached state.
Regards