I'm running version 188.8.131.52 of Magento Community with the compilation disabled.
Cache folder has been renamed to completely replace it. When I try to delete a Custom Option for a simple product I get the following Warning and nothing appears to happen.
Warning: array_key_exists() expects parameter 2 to be array, null given in /home/devhillcountry/public_html/app/code/core/Mage/Adminhtml/controllers/Catalog/ProductController.php on line 507
I upgraded this past weekend. This problem was occurring before the upgrade in version 184.108.40.206. Any idea what is causing this and how to fix it?