kwin and plasma configuration files list

I am having weird issues on my system and it is pointing to a configuration issue. May be related to old config files or just a really weird configuration that is causing the issues. Is there a list of all the config files used for plasma and kwin that can affect keyboard operation and screen issues. I have had weird lockups between accounts. Full screen freezing on some accounts requiring a reboot. Moving from SDDM to GDM has stopped the weird black screen on logouts. The most recent issue is no keyboard operation in one account if Clementine is open. Works okay in other accounts. I really don't want to wipe out all the configuration files again as I have done in the past. Robin