Occasional access violation in TUICommandCollection.Destroy() at program termination

[joachimmarder]

There are unfortunately no deterministic steps for reproducing this AV. Any ideas are welcome.

exception class    : EAccessViolation
exception message  : Access violation at address 0000000000418648 in module 'Tests.exe'. Read of address 00000000417128B8.

main thread ($3d4):
00418648 Tests.exe    System                      36030   +6 @IntfClear
01b54b5b Tests.exe    UIRibbonCommands             3744   +4 TUICollection.Destroy
0040e985 Tests.exe    System                      15718   +5 TObject.Free
01b4fef8 Tests.exe    UIRibbonCommands             2270   +1 TUICommandCollection.Destroy
0040e985 Tests.exe    System                      15718   +5 TObject.Free
01b86776 Tests.exe    UIRibbon                     2261   +3 {System.Generics.Collections}TObjectDictionary<System.Cardinal,UIRibbonCommands.TUICommand>.ValueNotify
01b8573b Tests.exe    UIRibbon                     1950  +12 {System.Generics.Collections}TDictionary<System.Cardinal,UIRibbonCommands.TUICommand>.Clear
01b85491 Tests.exe    UIRibbon                     1831   +1 {System.Generics.Collections}TDictionary<System.Cardinal,UIRibbonCommands.TUICommand>.Destroy
0040e985 Tests.exe    System                      15718   +5 TObject.Free
00494711 Tests.exe    System.SysUtils             25149   +3 FreeAndNil
01b7b952 Tests.exe    UIRibbon                      634   +3 TUIRibbon.Destroy
006c3d4d Tests.exe    Vcl.Controls                 8390  +23 TWinControl.Destroy
0087e4fe Tests.exe    Vcl.Forms                    3060   +3 TScrollingWinControl.Destroy
00880212 Tests.exe    Vcl.Forms                    3732  +33 TCustomForm.Destroy
0040e985 Tests.exe    System                      15718   +5 TObject.Free
00888294 Tests.exe    Vcl.Forms                    6818   +1 TCustomForm.CMRelease
0040f0ae Tests.exe    System                      16489  +10 TObject.Dispatch
006c0e43 Tests.exe    Vcl.Controls                 7232  +91 TControl.WndProc
006c8457 Tests.exe    Vcl.Controls                10038 +153 TWinControl.WndProc
00881e19 Tests.exe    Vcl.Forms                    4427 +206 TCustomForm.WndProc
006c767a Tests.exe    Vcl.Controls                 9750   +3 TWinControl.MainWndProc
005ef1b3 Tests.exe    System.Classes              16617   +8 StdWndProc