Movie Render Queue Still image automation not working in UE 5.5.3

Development Programming & Scripting C++
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I have always worked with the StillRenderSetup Automation that comes with Unreal’s Movie Render Queue.
It’s really great for rendering a still single frame level sequence shot.

This method was mentioned in Unreal’s official channel : https://youtu.be/Pb1uQcuQC6o .

In UE 5.5.3 I am facing a weird issue, whenever I create sequence, the sequence is completely empty, so there’s a null error when I try to render this out. Has anyone faced this yet?

for a workaround, now I go to the level sequences → delete the level sequence created by the system → drag and drop the Cine camera actor, thereby creating a level sequence. This works, but pretty annoying honestly.

Also I checked, this method is working fine in UE 5.4

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The bug is caused by a deprecated function.
The Python script mrq_stills.py that creates the sequences attempts to use the deprecated function “sequence.add_master_track(unreal.MovieSceneCameraCutTrack)”.
As a workaround, you can replace your engine installation path with the new function “sequence.add_track(unreal.MovieSceneCameraCutTrack)”: “UE_5.x/Engine/Plugins/MovieScene/MovieRenderPipeline/Content/Python/mrq_stills.py”

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(post deleted by author)

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Can you provide a few more steps to this fix/more context on how to implement it? I have fond the mrq_stills.py file, and see the entry “sequence.add_master_track(unreal.MovieSceneCameraCutTrack)”
Do I change it to “sequence.add_track(unreal.MovieSceneCameraCutTrack)”?
How does the Engine Installation path factor in this? I’m not versed in Python, so thank you for any help you can offer.