It seems related to the privacy modifier
TheMisfit
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But HAP an d the other packages are not my code they are all third party libraries
I was running 10.15 in my example not Big Sur.
I got confused because I thought Big Sur would be called Mac OS 11 beta, not 10.16
Your are right :-)The rest of the original code surrounding these UUID's made me believe that they where the cause of my app crashing.Printed them to the console and they are in fact OK.Values in the debugger seem not reliable (whats up with that???)Thank u so much :-)