I don't envy the engineer(s) tasked with developing a fix for this - if it were as simple as implementing a new Signed Certificate the issue would've been resolved by now. From asking numerous other players this bug doesn't affect everyone the same way or at near the occurrence rate as some, and if it isn't easily reproducible in the pre-production client - good luck hunting down what might be something as simple as a missed/misplaced operator somewhere in what I imagine is thousands of lines of code added with EoD to post.
Thank you for telling us you're working on it, and make sure to give the dev(s) working on a fix a cookie!