[BUG] Crash when deleting Timeline in Blueprint

I’m not sure why exactly but since I did a solution build I get a crash when trying to delete a timeline from my blueprints
here is the crash message below and dump files text doclink text

Assertion failed: !IsRooted() [File:d:\buildfarm\buildmachine_++depot+ue4-rocket+beta5\engine\source\runtime\coreuobject\public\uobject\UObjectBaseUtility.h] [Line: 75]

Stack:
Address = 0x6f32a26  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0x6e444fa  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0x3c08a00  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-UnrealEd.dll]
Address = 0x239d04d  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-BlueprintGraph.dll]
Address = 0x3c088ca  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-UnrealEd.dll]
Address = 0xfd51b3f4 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Kismet.dll]
Address = 0xfd522c7d (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Kismet.dll]
Address = 0xfd527627 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Kismet.dll]
Address = 0x451df80  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0x455902e  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0x1e82f83  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-GraphEditor.dll]
Address = 0x45c9496  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0x45c0408  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0x6eec6df  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0x6edf826  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0x6eed5fe  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0x6edcbd2  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0x39ba2524 (filename not found) [in C:\WINDOWS\system32\USER32.dll]
Address = 0x39ba2387 (filename not found) [in C:\WINDOWS\system32\USER32.dll]
Address = 0x6f23f79  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0x6eeda4b  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0x4b1d9421 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor.exe]
Address = 0x4b1ced60 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor.exe]
Address = 0x4b1cedca (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor.exe]
Address = 0x4b1dae1b (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor.exe]
Address = 0x4b1dbae3 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor.exe]
Address = 0x398415cd (filename not found) [in C:\WINDOWS\system32\KERNEL32.DLL]
Address = 0x3b6c43d1 (filename not found) [in C:\WINDOWS\SYSTEM32\ntdll.dll]
Address = 0x3b6c43d1 (filename not found) [in C:\WINDOWS\SYSTEM32\ntdll.dll]


Address = 0x38b3ab78 (filename not found) [in C:\WINDOWS\system32\KERNELBASE.dll]
Address = 0x6f310fc  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0x6e62ec2  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0x6e4459f  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0x3c08a00  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-UnrealEd.dll]
Address = 0x239d04d  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-BlueprintGraph.dll]
Address = 0x3c088ca  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-UnrealEd.dll]
Address = 0xfd51b3f4 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Kismet.dll]
Address = 0xfd522c7d (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Kismet.dll]
Address = 0xfd527627 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Kismet.dll]
Address = 0x451df80  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0x455902e  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0x1e82f83  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-GraphEditor.dll]
Address = 0x45c9496  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0x45c0408  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0x6eec6df  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0x6edf826  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0x6eed5fe  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0x6edcbd2  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0x39ba2524 (filename not found) [in C:\WINDOWS\system32\USER32.dll]
Address = 0x39ba2387 (filename not found) [in C:\WINDOWS\system32\USER32.dll]
Address = 0x6f23f79  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0x6eeda4b  (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0x4b1d9421 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor.exe]
Address = 0x4b1ced60 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor.exe]
Address = 0x4b1cedca (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor.exe]
Address = 0x4b1dae1b (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor.exe]
Address = 0x4b1dbae3 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor.exe]
Address = 0x398415cd (filename not found) [in C:\WINDOWS\system32\KERNEL32.DLL]
Address = 0x3b6c43d1 (filename not found) [in C:\WINDOWS\SYSTEM32\ntdll.dll]
Address = 0x3b6c43d1 (filename not found) [in C:\WINDOWS\SYSTEM32\ntdll.dll]

Hey Emile,

Thanks for your report! I have forwarded your crash information and callstack on for investigation, however, we have been unable to reproduce your crash locally–would you be able to include the blueprint asset you have that is crashing when you delete your Timeline?

Thanks!

-Steve

It was all blueprints. I deleted and restarted the project with fresh blueprints.

G’day,

Just experienced the same bug with a existing blueprint, though new blueprints work fine (so far).

In both cases - the bugged blueprint or a new blueprint - the ‘delete’ option for timelines is greyed out in the sidebar, so I have to hit Delete on the keyboard instead.

Kris

Are you still in need of a blueprint that causes this issue?
One of ours is doing this again…

Hey Kris,

If you could provide that blueprint .uasset, I’d be glad to take a look at it and see if we can get a repro with it.

Thanks!

-Steve