Thank you so much for your response and the code example! This is exactly what I needed. I also wasn’t aware of the technote you mentioned, I’ll definitely check that out. Cheers!

Hello! Thank you for your response. I will prepare Feedback Assistant report, yet do you think there's a chance this could be connected to threading (Main/Background) issue? Or maybe.. is it better to manually register audio resources and create patterns manually instead of AHAP files? I'll try to gather more info regarding the crash.

Thanks again! Got it, I'll have to provide more context. I was able to trigger this crash, not sure the exact steps yet. It's the same trace, but I could see the assertion failure on CoreHaptics now: CHHapticEngine.mm:2033 ASSERTION FAILURE [(_sResourceEntries->emplace(copiedResourceID, ResourceEntry(resource, options, 1)).second == true) != 0 is false]: Will investigate more and try to add more informations. Here's the feedback ID: FB15139995