RuntimeRaiseException broken?

I noticed crash reports with raising exceptions and wonder what could be broken in RuntimeRaiseException to cause a crash?

16 rbframework.dylib 0x000000010029a7de 0x10026d000 + 186334
17 rbframework.dylib 0x00000001002b1e19 0x10026d000 + 282137
18 rbframework.dylib 0x00000001002b4f0e 0x10026d000 + 294670
19 rbframework.dylib 0x00000001002a54e1 RuntimeRaiseException + 186
20 MBS_MacFrameworks_NSNetService_Plugin_20471 0x000000010124a7d2 RaiseException(char const*, char const*, unsigned int, long long) + 322

Same code works in desktop projects.

Never mind. My code accessed released memory.