Error log messages produced in Console app when trying to open the context/right-click menu for podcasts created from local files in pre-catalina iTunes by changing the tracks' media kind to "Podcast". I cannot access the context menu for these podcasts.

error1.txt

*** -[__NSArrayM insertObject:atIndex:]: object cannot be nil

error2.txt

(
	0   CoreFoundation                      0x00007fff2c63af53 __exceptionPreprocess + 250
	1   libobjc.A.dylib                     0x00007fff62700835 objc_exception_throw + 48
	2   CoreFoundation                      0x00007fff2c6fdd3a _CFThrowFormattedException + 202
	3   CoreFoundation                      0x00007fff2c6fbcb0 -[__NSArrayM insertObject:atIndex:].cold.2 + 0
	4   CoreFoundation                      0x00007fff2c57b751 -[__NSArrayM insertObject:atIndex:] + 1255
	5   ShareKit                            0x00007fff59517e94 -[SHKSharingServicePicker _placeholderItems] + 858
	6   ShareKit                            0x00007fff5951ae55 -[SHKSharingServicePicker queryPickerMenuItemsAndServicesWithCompletion:] + 91
	7   ShareKit                            0x00007fff594e2573 -[SHKSharingServicePicker showRelativeToRect:ofView:preferredEdge:] + 967
	8   UIKitMacHelper                      0x00007fff5d3e9728 -[UINSShareSheetController presentShareSheetWithItems:atUIWindowRect:] + 1191
	9   ShareSheet                          0x00007fff5958c2bc -[UIActivityViewController _presentMacShareSheet] + 1834
	10  UIKitCore                           0x00007fff6a77e956 -[UIViewController presentViewController:animated:completion:] + 119
	11  UIKit                               0x00007fff63d92289 -[UIViewControllerAccessibility presentViewController:animated:completion:] + 221
	12  NowPlayingUI                        0x000000010c3d7ec7 block_copy_helper.118 + 3319
	13  NowPlayingUI                        0x000000010c3766b5 block_copy_helper.186 + 5253
	14  NowPlayingUI                        0x000000010c375abe block_copy_helper.186 + 2190
	15  NowPlayingUI                        0x000000010c37550a block_copy_helper.186 + 730
	16  Podcasts                            0x000000010bfd0c42 Podcasts + 2325570
	17  PodcastsUI                          0x000000010cc09fa8 globalinit_33_F63D3B187BD1FEA6005A205952ED7F27_func618 + 20040
	18  PodcastsUI                          0x000000010cbe5060 globalinit_33_FF2E741B75D10937859376FB9202C0F4_func585 + 18304
	19  UIKitCore                           0x00007fff6a3b93d5 -[UIApplication sendAction:to:from:forEvent:] + 83
	20  UIKitCore                           0x00007fff6a3c4531 -[UIControl sendAction:to:forEvent:] + 241
	21  UIKitCore                           0x00007fff6a3c25d8 -[UIControl _sendActionsForEvents:withEvent:] + 398
	22  UIKitCore                           0x00007fff6a3c3fb2 -[UIControl touchesEnded:withEvent:] + 542
	23  UIKitCore                           0x00007fff6a390efa -[UIWindow _sendTouchesForEvent:] + 2801
	24  UIKitCore                           0x00007fff6a36909f -[UIWindow sendEvent:] + 4544
	25  UIKitCore                           0x00007fff6a367337 -[UIApplication sendEvent:] + 356
	26  UIKit                               0x00007fff63d34d48 -[UIApplicationAccessibility sendEvent:] + 85
	27  UIKitCore                           0x00007fff6a36553d __dispatchPreprocessedEventFromEventQueue + 7458
	28  UIKitCore                           0x00007fff6a3115c5 __handleEventQueueInternal + 5929
	29  UIKitCore                           0x00007fff6a30f921 __handleHIDEventFetcherDrain + 90
	30  CoreFoundation                      0x00007fff2c5a6b81 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
	31  CoreFoundation                      0x00007fff2c5a6b20 __CFRunLoopDoSource0 + 103
	32  CoreFoundation                      0x00007fff2c58a154 __CFRunLoopDoSources0 + 209
	33  CoreFoundation                      0x00007fff2c589760 __CFRunLoopRun + 1272
	34  CoreFoundation                      0x00007fff2c588fe3 CFRunLoopRunSpecific + 499
	35  HIToolbox                           0x00007fff2b11067d RunCurrentEventLoopInMode + 292
	36  HIToolbox                           0x00007fff2b1103bd ReceiveNextEventCommon + 600
	37  HIToolbox                           0x00007fff2b110147 _BlockUntilNextEventMatchingListInModeWithFilter + 64
	38  AppKit                              0x00007fff29795864 _DPSNextEvent + 990
	39  AppKit                              0x00007fff297945d4 -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 1352
	40  AppKit                              0x00007fff2978ed76 -[NSApplication run] + 658
	41  AppKit                              0x00007fff2978095d NSApplicationMain + 777
	42  AppKit                              0x00007fff29c01094 _NSApplicationMainWithInfoDictionary + 16
	43  UIKitMacHelper                      0x00007fff5d3b9731 UINSApplicationMain + 322
	44  UIKitCore                           0x00007fff6a1acba4 UIApplicationMain + 2206
	45  Podcasts                            0x000000010bf0185a Podcasts + 1476698
	46  libdyld.dylib                       0x00007fff63a632e5 start + 1
	47  ???                                 0x0000000000000001 0x0 + 1
)