As ticket title says, i get White screen when Updating posts when plugin is active so cant save posts, have got to a point where we are certain its your plugin.
I found you ticket finally. I didn’t get any notification and it was marked as a spam by Akismet for some reason..
Anyways, can you please provide temporary login and ftp access to debug the problem? Unfortunately there were no similar reports of such a problem, so I have no idea yet of the cause.