Crash happens when xcode run s3e_simulator_debug (binary) and in ClipBook there is no any way to add specific binary to ignore list only Applications can be added to ignore list in ClipBook settings -> Privacy -> lgnore applications. That combination is a classic: something inside ClipBook calls strlen() on a null C-string while handling an “active app changed” notification. In other words, ClipBook observes the frontmost app (via NSRunningApplication / workspace notifications), tries to read some string field (bundle id, app name, path, etc.), but for some app/event it’s missing / nil, and the app doesn’t guard against it.
Thread 0 Crashed:: CrBrowserMain Dispatch queue: com.apple.main-thread 0 libsystem_platform.dylib 0x19326ea44 _platform_strlen + 4 1 libmobrowser_client.dylib 0x101c21410 MainAppMac::setActiveAppInfo(NSRunningApplication*) + 68 2 libmobrowser_client.dylib 0x101c1ef64 -[ActiveAppObserver activeAppChanged:] + 84 3 CoreFoundation 0x19331746c __CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__ + 148 4 CoreFoundation 0x1933a6b28 ___CFXRegistrationPost_block_invoke + 92 5 CoreFoundation 0x1933a6a6c _CFXRegistrationPost + 436 6 CoreFoundation 0x1932e68b8 _CFXNotificationPost + 740 7 Foundation 0x1948a0680 -[NSNotificationCenter postNotificationName:object:userInfo:] + 88 8 AppKit 0x1973ddd3c applicationStatusSubsystemCallback + 728 9 LaunchServices 0x193807430 ___LSScheduleNotificationFunction_block_invoke_2 + 52 10 CoreFoundation 0x1933226b4 __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 28 11 CoreFoundation 0x1933225c4 __CFRunLoopDoBlocks + 352 12 CoreFoundation 0x193321a70 __CFRunLoopRun + 2384 13 CoreFoundation 0x193320a98 CFRunLoopRunSpecific + 572 14 HIToolbox 0x19edc327c RunCurrentEventLoopInMode + 324 15 HIToolbox 0x19edc64e8 ReceiveNextEventCommon + 676 16 HIToolbox 0x19ef51484 _BlockUntilNextEventMatchingListInModeWithFilter + 76 17 AppKit 0x197245a34 _DPSNextEvent + 684 18 AppKit 0x197be4940 -[NSApplication(NSEventRouting) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 688 19 Chromium Framework 0x11454ee24 ChromeMain + 112676296 20 Chromium Framework 0x10db5b1f4 ChromeMain + 1577368 21 Chromium Framework 0x1113a6988 ChromeMain + 60606764 22 AppKit 0x197238be4 -[NSApplication run] + 480 23 Chromium Framework 0x1101e0040 ChromeMain + 41967588 24 Chromium Framework 0x1101dfe80 ChromeMain + 41967140 25 Chromium Framework 0x10f836464 ChromeMain + 31835144 26 Chromium Framework 0x10f835c4c ChromeMain + 31833072 27 Chromium Framework 0x110631d10 ChromeMain + 46496948 28 Chromium Framework 0x110631a4c ChromeMain + 46496240 29 Chromium Framework 0x10fe660cc ChromeMain + 38322288 30 Chromium Framework 0x10f2fe538 ChromeMain + 26363100 31 Chromium Framework 0x10d9da2a0 ChromeMain + 580 32 ClipBook 0x10034485c main + 196 33 dyld 0x192e96b98 start + 6076

Also, the issue is reproduced if Yamaha THR Remote app (https://usa.yamaha.com/support/updates/thr_remote_mac.html) is running (or opening).