Every Window launches offcenter

[luxploit-old]

Hello there,

I Use this fork: (https://github.com/A1phaZer0/monsterwm-xinerama) of the xinerama-init branch.
I run a Triple Monitor Setup Consisting of 3 Different Monitors with 2 Different Resolutions (2x 1920x1080, 1x 1280x1024).
In my .xinitrc i have a xrandr script to set my monitors in the correct order, but once its executed, it messes up monsterwm's window positioning. As a result every window launches offcenter. Does anyone know how to fix this?

Thanks in Advance