This looks like a problem with the AJAX processor on the backend. Need to look into ajax_onload.
csl_ajax_onload refs
The problem was with the Power add on trying to validate SLP location IDs when updating map markers. The intent is to NOT manipulate a map marker with an invalid ID as it can cause more problems downstream.
Resolution
DO NOT check_admin_referer() for the AJAX calls. The easiest way to check that , since we do not have an easily-accessible reference variable for “hey, I’m running an AJAX query now” is to simply ensure the nonce we want to validate even exists in the first place.
