Thread:Project:Support desk/problems loading css/reply (15)

I've been having the same problem for some time, and found my way here when I discovered that load.php?debug=false&lang=en&modules=skins.vector&only=styles&skin=vector&* was producing an error 500 50% of the time. None of the fixes mentioned above help in any way. Nothing is appearing in the script error logs and no amount of changes to the error logging settings in php.ini make any errors appear. What I did discover, however, is that the problem goes away if I change the string to debug=true and thus I can work around the problem by adding $wgResourceLoaderDebug=true to LocalSettings.php, although what other effects that may have I do not know.