Hey ZkarmaKun,
Thank you again! I have added some parameter to the method as well and it works just fine. 
I’m still not sure why it is *getCharArray() and not just getCharArray() without the pointer thingy… but… as long as it works I am happy.
One last question: How do I send / receive a struct like a Vector3 or a Quaternion ?
Best
Greetings