Another Update:
If I enforce my Macbook to use the i7 hd4000 integrated graphics, its works perfectly fine, but I still need this fixed since if you plug in an external diplay (which i have to for my presentation) it will use the dedicated gpu.
Any hints? Please..

Hello, this is my first post and thread on here, wo-hoo.

Anyways, I'm having trouble wiht pd extended,
if i create a gem window it tends to remain unreactive,
i cannot drag it and if I hover over it, the rainbow loading pointer is displayed.
The patches however usually keep working though, but next to that a second instance of
the pd application with the standard app icon pops up, while being diplayed as unresponsive application
in the force quit window, it also stays there even after destroying the gem output window.
Showing it in the finder takes me to the path as seen on the attached picture, within the pd.app. This whole problem occurred after messing around with the rtx object, might be coincidence, too, I dont know. Anyways, re-installing doesnt work, the problem persists.

Running pd on a 2012 MBP, configuration is the md 103 model w/nvidia 650 graphics, custom antiglare 1050p display

I need quick help, kinda, because I need this machine with pure data running fine on it in about a week for a presentation.

Many thanks in advance,

UPDATE:
The Application remains active, even unrecognised by force quit, forcing my laptop to constantly run on the dedicated graphics

Alex