As I said in my post, I’ve updated the php.ini to increase available memory to 1GB. I tested this independently and the increase worked but didn’t affect this particular error.
To ensure I wasn’t overwriting this value, I checked wp-config.php and the .htaccess files. I wasn’t overwriting the value, but just in case, I also set the max memory limit to 1gb in both htaccess and wp-config to see if it helped, but it still didn’t.
