Rendered Picture is not what active camera shows

Hi, I’m not sure if this is the same issue but,

I have encountered a bug where the active camera does not get updated for the renderer.
In a scene with mutliple cameras, I tried to change the active camera. It changed in the 3d view, but the render was from the POV of the old camera. Deleting every other camera in the scene did not help, and neither did deleting all cameras and adding a new one.

I have run into this nasty bug twice now (my workaround was to just import everything from the scene into a clean blender file).

unfortunately, I have not been able to recreate it and I don’t know what causes it exactly.
may or may not be the same issue but it sounds very similar.

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EDIT:
okay, the below answer seems to be the case. It does fix the files in question.
A bit embarrassing on my part but good to know, thanks