Help!! Crashes!! [Assertation failed: Uniform Buffer] etc...

I am working on an animation demo, the project includes Meta Human and level sequencer, I’m not sure if that’s what triggered the crash.
I am not sure if the crash is triggered by any specific action, but it seems to occur randomly during my use, roughly 5 minutes each time since I opened the project.
Here is the Crash Reporter:

Assertion failed: UniformBuffer [File:D:\build++UE5\Sync\Engine\Source\Runtime\RHI\Private\RHIContext.cpp] [Line: 58]
Attemped to assign a null uniform buffer to the global uniform buffer bindings.

UnrealEditor_RHI
UnrealEditor_RenderCore
UnrealEditor_RenderCore
UnrealEditor_Renderer
UnrealEditor_RenderCore
UnrealEditor_RenderCore
UnrealEditor_RenderCore
UnrealEditor_RenderCore
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
kernel32
ntdll

Thank you so much if anyone can save me!!!

I’m also getting this issue consistently when trying to set up a simple camera shot in the sequencer. I hope someone has an answer for this soon. It’s driving me up the wall.

Assertion failed: UniformBuffer [File:D:\build++UE5\Sync\Engine\Source\Runtime\RHI\Private\RHIContext.cpp] [Line: 58]
Attemped to assign a null uniform buffer to the global uniform buffer bindings.

I got the same issue every time making a camera sequence … crash every time. the same code. please help!

Hi, i have the same issue but with two cameras in one sequence. If u have the same problem, try to make new sequence with second camera. Looks like UE dont like 2 cameras in one sequnce. For me it works now.

All it takes is selecting the Actor which the Camera is parented to in the sequencer and Unreal crashes.

This is killing me. I work exclusively in sequencer and was bold enough to complete the last 80 hours of work in UE 5.5. Unless there is someway to migrate backwards, which I know there isn’t, I’m stuck crashing every 5 minutes, or recreating my work in a more stable version.

I could troubleshoot this further, but based on other reports, I don’t think the level of complexity of my scene or animation edits is the culprit. This seems like a low level caching issue, but I don’t really know.

Any help from Epic? Pretty devastating. THX1

UPDATE:
Decided to start a sequence from scratch with a barebones setup. The significant change was to remove my camera from the rig hierarchy (CTRL_Mover > CTRL_Cam > CTRL_Offset > CineCam). This SEEMS to be stable for the moment.

Strike that - A simple Cinecam, with a single plane parented to it seems to be enough to crash it? I can’t be sure.

Same error here, it’s crazy, the project keeps crashing and crashing, while working in a sequencer with a camera attached to an object itself attached to a bone of a skeletal mesh

Assertion failed: UniformBuffer [File:D:\build++UE5\Sync\Engine\Source\Runtime\RHI\Private\RHIContext.cpp] [Line: 58]
Attemped to assign a null uniform buffer to the global uniform buffer bindings.