Since updated to iOS 13 we have had this crash in several Apps.(lldb) bt* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=EXC_I386_GPFLT) frame #0: 0x00007fff2b13578d QuartzCore`CA::Layer::retain_parent(CA::Transaction*) const + 35 frame #1: 0x00007fff2b1455b9 QuartzCore`CALayerGetSuperlayer + 47 frame #2: 0x00007fff485813a8 UIKitCore`-[UIView(UIKitManual) superview] + 37 frame #3: 0x00007fff484a3848 UIKitCore`-[UILayoutGuide _snipReferencingConstraints] + 567 frame #4: 0x00007fff484a2a45 UIKitCore`-[UILayoutGuide _owningViewIsDeallocating] + 32 frame #5: 0x00007fff48546db2 UIKitCore`-[UIView _layoutConstraintCleanup] + 248 frame #6: 0x00007fff48546fe2 UIKitCore`-[UIView dealloc] + 155 frame #7: 0x00007fff482342f7 UIKitCore`-[UITableViewCellContentView dealloc] + 68 frame #8: 0x00007fff5140d4c0 libobjc.A.dylib`_object_remove_assocations + 239 frame #9: 0x00007fff5140a4c2 libobjc.A.dylib`objc_destructInstance + 79 frame #10: 0x00007fff23c925be CoreFoundation`-[NSObject(NSObject) __dealloc_zombie] + 158 frame #11: 0x00007fff2b12a39b QuartzCore`-[CALayer dealloc] + 163 frame #12: 0x00007fff2b0bf6a7 QuartzCore`CA::release_objects(X::List<void const*>*) + 26 frame #13: 0x00007fff2b0bf777 QuartzCore`CA::release_root_if_unused(CA::Layer*, CA::Layer*, void*) + 35 frame #14: 0x00007fff2b038492 QuartzCore`x_hash_table_remove_if + 97 frame #15: 0x00007fff2b0bfa66 QuartzCore`CA::Transaction::commit() + 408 frame #16: 0x00007fff2b0c04ba QuartzCore`CA::Transaction::observer_callback(__CFRunLoopObserver*, unsigned long, void*) + 76 frame #17: 0x00007fff23bd3867 CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 23 frame #18: 0x00007fff23bce2fe CoreFoundation`__CFRunLoopDoObservers + 430 frame #19: 0x00007fff23bce97a CoreFoundation`__CFRunLoopRun + 1514 frame #20: 0x00007fff23bce066 CoreFoundation`CFRunLoopRunSpecific + 438 frame #21: 0x00007fff384c0bb0 GraphicsServices`GSEventRunModal + 65 frame #22: 0x00007fff48092d4d UIKitCore`UIApplicationMain + 1621 * frame #23: 0x000000010090948b BBQSheriff`main at BBQAppDelegate.swift:22:13 frame #24: 0x00007fff5227ec25 libdyld.dylib`start + 1 frame #25: 0x00007fff5227ec25 libdyld.dylib`start + 1Running with Address Sanitizer and Zombie Objects as shown above does not show any Additional information in sumulator logs.Most important question is: How do I determine which object is causing the problem and/or what that problem might be?Xcode Version 11.3.1 (11C504)

Using Xcode Version 11.4 (11E146) on macOS Catalina 10.15.4 (19E266).I am building a macOS app that requires libpq from postgresql.The problem that I am facing is that when running my xcode built app, it uses an unknown libpq that reports version 9.3.7 (maybe provided by the sytem) no matter how I try to get Xcode to use the MacPorts libpq located at `/opt/local/lib/postgresql11/libpq.5.11.dylib` which should report as version 11.07.I determine the client library version by examing the results from the libpq function call `PQlibVersion()`Here is what I have tried. Between each attempt the project was cleaned.1. Add `/opt/local/lib/postgresql11/libpq.5.11.dylib` to target -> General -> Frameworks, Libraries, and Embedded Content. Select "Do Not Embed". Compiles, runs, does NOT work, still uses system libpq.% otool -L MyApp.app/Contents/MacOS/MyAppMyApp.app/Contents/MacOS/RushRadioSQLDataProcessing: @rpath/CSV.framework/Versions/A/CSV (compatibility version 1.0.0, current version 1.0.0) @rpath/ObjcExceptionBridging.framework/Versions/A/ObjcExceptionBridging (compatibility version 1.0.0, current version 1.0.0) @rpath/XCGLogger.framework/Versions/A/XCGLogger (compatibility version 1.0.0, current version 1.0.0) /System/Library/Frameworks/CloudKit.framework/Versions/A/CloudKit (compatibility version 1.0.0, current version 867.0.0) /opt/local/lib/postgresql11/libpq.5.dylib (compatibility version 5.0.0, current version 5.11.0) /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation (compatibility version 300.0.0, current version 1675.129.0) /usr/lib/libobjc.A.dylib (compatibility version 1.0.0, current version 228.0.0) /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1281.100.1) /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit (compatibility version 45.0.0, current version 1894.40.150) /System/Library/Frameworks/CoreData.framework/Versions/A/CoreData (compatibility version 1.0.0, current version 977.3.0) /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation (compatibility version 150.0.0, current version 1675.129.0) /System/Library/Frameworks/CoreLocation.framework/Versions/A/CoreLocation (compatibility version 1.0.0, current version 2394.0.22) @rpath/libswiftCloudKit.dylib (compatibility version 1.0.0, current version 0.0.0) @rpath/libswiftCore.dylib (compatibility version 1.0.0, current version 1103.8.25) @rpath/libswiftCoreData.dylib (compatibility version 1.0.0, current version 0.0.0) @rpath/libswiftDispatch.dylib (compatibility version 1.0.0, current version 0.0.0) @rpath/libswiftFoundation.dylib (compatibility version 1.0.0, current version 0.0.0) @rpath/libswiftObjectiveC.dylib (compatibility version 1.0.0, current version 0.0.0)2. Add `/opt/local/lib/postgresql11/libpq.5.11.dylib` to target -> General -> Frameworks, Libraries, and Embedded Content. Select "Embed & Sign". Compiles, runs, does NOT work, still uses system libpq. Does NOT work, still uses system libpq.% otool -L myApp.app/Contents/MacOS/MyApp: @rpath/CSV.framework/Versions/A/CSV (compatibility version 1.0.0, current version 1.0.0) @rpath/ObjcExceptionBridging.framework/Versions/A/ObjcExceptionBridging (compatibility version 1.0.0, current version 1.0.0) @rpath/XCGLogger.framework/Versions/A/XCGLogger (compatibility version 1.0.0, current version 1.0.0) /System/Library/Frameworks/CloudKit.framework/Versions/A/CloudKit (compatibility version 1.0.0, current version 867.0.0) /opt/local/lib/postgresql11/libpq.5.dylib (compatibility version 5.0.0, current version 5.11.0) /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation (compatibility version 300.0.0, current version 1675.129.0) /usr/lib/libobjc.A.dylib (compatibility version 1.0.0, current version 228.0.0) /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1281.100.1) /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit (compatibility version 45.0.0, current version 1894.40.150) /System/Library/Frameworks/CoreData.framework/Versions/A/CoreData (compatibility version 1.0.0, current version 977.3.0) /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation (compatibility version 150.0.0, current version 1675.129.0) /System/Library/Frameworks/CoreLocation.framework/Versions/A/CoreLocation (compatibility version 1.0.0, current version 2394.0.22) @rpath/libswiftCloudKit.dylib (compatibility version 1.0.0, current version 0.0.0) @rpath/libswiftCore.dylib (compatibility version 1.0.0, current version 1103.8.25) @rpath/libswiftCoreData.dylib (compatibility version 1.0.0, current version 0.0.0) @rpath/libswiftDispatch.dylib (compatibility version 1.0.0, current version 0.0.0) @rpath/libswiftFoundation.dylib (compatibility version 1.0.0, current version 0.0.0) @rpath/libswiftObjectiveC.dylib (compatibility version 1.0.0, current version 0.0.0)3. Add `/opt/local/lib/postgresql11/libpq.5.11.dylib` to target -> General -> Frameworks, Libraries, and Embedded Content. Select "Embed without Signing". Does not compile. Error App code object is not signed at all In subcomponent: MyApp.app/Contents/Frameworks/libpq.5.11.dylibWhen I sampled the running app I found that it shows the following lib being used.libpq.5.dylib (207.14) <72EB7D5B-B6AB-3BBE-877D-C01637C38548> /usr/lib/libpq.5.dylibWhy is it using this lib and not the version specified in the Xcode build instructions?