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My PyInstaller compiled python application (with pysimpleGUI) triggers WindowServer Crush on MacOS Mojave after upgrade to 10.14.6. it works fine on Mojave 10.14.5. The Crush report is:Process: WindowServer [5018]Path: /System/Library/PrivateFrameworks/SkyLight.framework/Versions/A/Resources/WindowServerIdentifier: WindowServerVersion: 600.00 (340.54)Code Type: X86-64 (Native)Parent Process: launchd [1]Responsible: WindowServer [5018]User ID: 88Date/Time: 2019-08-13 09:08:18.358 +0800OS Version: Mac OS X 10.14.6 (18G87)Report Version: 12Anonymous UUID: 649AC0FA-E958-A5A5-4FBD-F0D0B9368D35Time Awake Since Boot: 36000 secondsSystem Integrity Protection: disabledCrashed Thread: 0 Dispatch queue: com.apple.main-threadException Type: EXC_BAD_ACCESS (SIGSEGV)Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000000Exception Note: EXC_CORPSE_NOTIFYTermination Signal: Segmentation fault: 11Termination Reason: Namespace SIGNAL, Code 0xbTerminating Process: exc handler [5018]VM Regions Near 0:--> __TEXT 0000000102fd9000-0000000102fdb000 [ 8K] r-x/rwx SM=COW /System/Library/PrivateFrameworks/SkyLight.framework/Versions/A/Resources/WindowServerApplication Specific Information:StartTime:2019-08-13 00:05:44GPU:IGMetalDevice for accelerator(0x4833): 0x7fc982707d98 (MTLDevice: 0x10fda1000)IOService:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/IGPU@2/AppleIntelFramebuffer@0Thread 0 Crashed:: Dispatch queue: com.apple.main-thread0 com.apple.SkyLight 0x00007fff527ef485 CGXBeginSurfaceLayerUpdate + 32071 com.apple.SkyLight 0x00007fff5289e1a9 prepare_CoreAnimation_update_state(CGXConnection*, CGXWindowSubArray, bool, bool) + 6362 com.apple.SkyLight 0x00007fff52899c39 CGXUpdateDisplay + 70813 com.apple.SkyLight 0x00007fff52897e20 update_display_callback(void*, double) + 2984 com.apple.SkyLight 0x00007fff528dc8a1 run_timer_pass + 4895 com.apple.SkyLight 0x00007fff5290ebd2 CGXRunOneServicesPass + 1806 com.apple.SkyLight 0x00007fff5290fd52 server_loop + 6027 com.apple.SkyLight 0x00007fff5290faf1 SLXServer + 13498 WindowServer 0x0000000102fda50d 0x102fd9000 + 53899 libdyld.dylib 0x00007fff594ae3d5 start + 1Thread 1:: Dispatch queue: com.apple.VirtualDisplayListener0 libsystem_kernel.dylib 0x00007fff595e322a mach_msg_trap + 101 libsystem_kernel.dylib 0x00007fff595e376c mach_msg + 602 libsystem_kernel.dylib 0x00007fff595ea85c mach_msg_server_once + 2843 com.apple.CoreDisplay 0x00007fff2d43761e 0x7fff2d42d000 + 425264 libdispatch.dylib 0x00007fff594605f8 _dispatch_call_block_and_release + 125 libdispatch.dylib 0x00007fff5946163d _dispatch_client_callout + 86 libdispatch.dylib 0x00007fff594678e0 _dispatch_lane_serial_drain + 6027 libdispatch.dylib 0x00007fff59468396 _dispatch_lane_invoke + 3858 libdispatch.dylib 0x00007fff594706ed _dispatch_workloop_worker_thread + 5989 libsystem_pthread.dylib 0x00007fff596a1611 _pthread_wqthread + 42110 libsystem_pthread.dylib 0x00007fff596a13fd start_wqthread + 13Thread 2:0 libsystem_kernel.dylib 0x00007fff595e322a mach_msg_trap + 101 libsystem_kernel.dylib 0x00007fff595e376c mach_msg + 602 com.apple.CoreDisplay 0x00007fff2d4e8fbc 0x7fff2d42d000 + 7699803 com.apple.CoreDisplay 0x00007fff2d4e9117 0x7fff2d42d000 + 7703274 libsystem_pthread.dylib 0x00007fff596a22eb _pthread_body + 1265 libsystem_pthread.dylib 0x00007fff596a5249 _pthread_start + 666 libsystem_pthread.dylib 0x00007fff596a140d thread_start + 13Thread 3:: com.apple.coreanimation.render-server0 libsystem_kernel.dylib 0x00007fff595e322a mach_msg_trap + 101 libsystem_kernel.dylib 0x00007fff595e376c mach_msg + 602 com.apple.QuartzCore 0x00007fff38022b5a CA::Render::Server::server_thread(void*) + 8653 com.apple.QuartzCore 0x00007fff380227e6 thread_fun(void*) + 254 libsystem_pthread.dylib 0x00007fff596a22eb _pthread_body + 1265 libsystem_pthread.dylib 0x00007fff596a5249 _pthread_start + 666 libsystem_pthread.dylib 0x00007fff596a140d thread_start + 13Thread 4:0 libsystem_kernel.dylib 0x00007fff595e327e semaphore_timedwait_trap + 101 libdispatch.dylib 0x00007fff59461c99 _dispatch_sema4_timedwait + 762 libdispatch.dylib 0x00007fff59462377 _dispatch_semaphore_wait_slow + 583 libdispatch.dylib 0x00007fff5946f1fd _dispatch_worker_thread + 3174 libsystem_pthread.dylib 0x00007fff596a22eb _pthread_body + 1265 libsystem_pthread.dylib 0x00007fff596a5249 _pthread_start + 666 libsystem_pthread.dylib 0x00007fff596a140d thread_start + 13Thread 5:0 libsystem_pthread.dylib 0x00007fff596a13f0 start_wqthread + 0Thread 6:0 libsystem_kernel.dylib 0x00007fff595e327e semaphore_timedwait_trap + 101 libdispatch.dylib 0x00007fff59461c99 _dispatch_sema4_timedwait + 762 libdispatch.dylib 0x00007fff59462377 _dispatch_semaphore_wait_slow + 583 libdispatch.dylib 0x00007fff5946f1fd _dispatch_worker_thread + 3174 libsystem_pthread.dylib 0x00007fff596a22eb _pthread_body + 1265 libsystem_pthread.dylib 0x00007fff596a5249 _pthread_start + 666 libsystem_pthread.dylib 0x00007fff596a140d thread_start + 13Thread 7:0 libsystem_kernel.dylib 0x00007fff595e327e semaphore_timedwait_trap + 101 libdispatch.dylib 0x00007fff59461c99 _dispatch_sema4_timedwait + 762 libdispatch.dylib 0x00007fff59462377 _dispatch_semaphore_wait_slow + 583 libdispatch.dylib 0x00007fff5946f1fd _dispatch_worker_thread + 3174 libsystem_pthread.dylib 0x00007fff596a22eb _pthread_body + 1265 libsystem_pthread.dylib 0x00007fff596a5249 _pthread_start + 666 libsystem_pthread.dylib 0x00007fff596a140d thread_start + 13Thread 8:0 libsystem_pthread.dylib 0x00007fff596a13f0 start_wqthread + 0Thread 9:0 libsystem_pthread.dylib 0x00007fff596a13f0 start_wqthread + 0Thread 0 crashed with X86 Thread State (64-bit): rax: 0x0000000000000000 rbx: 0x00007fc982713660 rcx: 0x0000000000000000 rdx: 0x0000000000009870 rdi: 0x00000000781ac436 rsi: 0x00007fc982400000 rbp: 0x00007ffeecc15a70 rsp: 0x00007ffeecc156c0 r8: 0x0000000000000006 r9: 0x00007fc9824ed710 r10: 0x0000000000000007 r11: 0x0000000000000007 r12: 0x00007fc98286ea00 r13: 0x00007fc9847a20d0 r14: 0x0000000000000000 r15: 0x00007fc98256da58 rip: 0x00007fff527ef485 rfl: 0x0000000000010206 cr2: 0x0000000000000000Logical CPU: 2Error Code: 0x00000004Trap Number: 14