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This "silently" indicates the following. It seems impossible to investigate the causes of the crash. The number of crashes on the organizer does not contain this. The crash log is not sent at all. The crash log is not left on the device. The number of crashes on "App Store Connect > Analytics > Metrics > Crashes" does not contain this. Currently, we understand the tendencies of this crash are as follows. Higher resolution devices. Older models. Therefore, we consider that the crashes are relevant to the memory consumption. However, we are not assured of that because of the following causes. There are no crash logs. The specific numbers of the memory limitation are undocumented publicly. The keyboard app developers consider it an open secret, and the threshold value is based on various hypotheses. The questions are as follows. Is there a way to identify the cause? Are there the same or similar reports? Is there an approach to solve this crash?

Hi there,I have developed a keyboard extension.After Xcode updated to 11 GM, I noticed the following warning.2019-09-19 13:05:34.662500+0900 keyboard[4053:760870] [lifecycle ] WARNING! Sole personality requested when nil; THIS MAY BE A SPURIOUS LAUNCH OF THE PLUGIN due to a message to an XPC endpoint other than the main service endpoint; personalities: { "bundle.id.keyboard" = { 1772 = "<PKServicePersonality: 0x2833510a0; core = <PKPlugInCore: 0x2833510a0; uuid = [B130B9A3-A841-4B0B-8AD8-36304E96D420], identifier = [bundle.id.keyboard(1.0.0)], isAppExtension = 1, onSystemVolume = 0, containingBundle = [(null)], lastModified = 0, discoveryInstanceUUID = [(null)], path = [/private/var/containers/Bundle/Application/dir/Sample.app/PlugIns/keyboard.appex]>, host pid = 1772>"; }; } 2019-09-19 13:03:42.634648+0900 keyboard[4053:760203] [lifecycle ] [u 3F02CD60-EFF3-4B97-AB80-18224FC694D0] [bundle.id.keyboard(1.0.0)] WARNING! Sole personality is ambiguous; this may lead to erradic behavior; personalities: { "bundle.id.keyboard" = { 4047 = "<PKServicePersonality: 0x283351420; core = <PKPlugInCore: 0x283351420; uuid = [1591FF90-CB1D-4D65-97AF-83F3B7F691FC], identifier = [bundle.id.keyboard(1.0.0)], isAppExtension = 1, onSystemVolume = 0, containingBundle = [(null)], lastModified = 0, discoveryInstanceUUID = [(null)], path = [/private/var/containers/Bundle/Application/dir/Sample.app/PlugIns/keyboard.appex]>, host pid = 4047>"; 4056 = "<PKServicePersonality: 0x2833cc9a0; core = <PKPlugInCore: 0x2833cc9a0; uuid = [3F02CD60-EFF3-4B97-AB80-18224FC694D0], identifier = [bundle.id.keyboard(1.0.0)], isAppExtension = 1, onSystemVolume = 0, containingBundle = [(null)], lastModified = 0, discoveryInstanceUUID = [(null)], path = [/private/var/containers/Bundle/Application/dir/Sample.app/PlugIns/keyboard.appex]>, host pid = 4056>"; }; }What does this means?EnvironmentXcode: 11 GM 2iOS: 13 GMDevice: iPhone 6s