hi niko!
i'm interested in fixing your problem, but i need more information.
find the last version (build number) that works fine for you.
you should download older version (you find here, on the beta forum board), and use them until you find the most recent version that has not the problem.
it takes some time on your side, i know and i'm sorry, but it's the only method coming to my mind.
do you think you can do it?
a tip: you don't need to go 1-by-1. initially you can go 10-by-10 (or less). so you will find it faster.