Description
## Crash
App crashes with an unrecognized selector sent via NSXPCConnection reply block.
```
Exception Reason: -[%s %s]: unrecognized selector sent to instance 0x11af43700
Termination Reason: SIGNAL 6 Abort trap: 6
```
## Backtrace (key frames)
```
5 Foundation -[NSXPCConnection _sendInvocation:orArguments:count:methodSignature:selector:withProxy:] + 2224 (NSXPCConnection.m:1705)
... Foundation -[NSXPCConnection _decodeAndInvokeReplyBlockWithEvent:sequence:replyInfo:] + 528
```
## Version
v0.2.60 (build 83), 2026-05-19
## Source issue
Crash report #287
## Notes
This is distinct from the DataManager crash (#319, v0.2.59) and from MicrophoneRelay crashes (#274, #320). The XPC connection crash suggests an async reply callback is being delivered to an object that has been deallocated or replaced. The fact that both v0.2.59 and v0.2.60 have different crash patterns suggests these were actively broken builds during development.