11/17/2013 at 8:50 am #273854
Clicking update should take you back to the manage page automatically. A white page mean there’s either a fatal PHP error or PHP has exhausted the memory allocation or anther plugin is conflicting somehow.
I would start by deactivating plugins one at a time and test update an entry after each plugin deactivation to see if the issue is due to a plugin conflict.
I also suggest checking the PHP error logs as they might reveal the cause of the issue.
Another item to try is increasing the memory allocated to PHP. This blog post is an excellent resource. Which method that will work for you is dependent on your web host. So, start at the top of their suggestions and work your way down.
I hope that helps.