This could be just a comment but here I go.
Well, just to recap. Yes, try to remove the object in the object properties inside Blender. You could ask in https://blender.stackexchange.com/
But if you want to do it in another program, you could use one that has object tracking like Davinci Resolve. Look for a specific tutorial googling this: https://duckduckgo.com/?q=davinci+resolve+removing+objects.
The problem is that you have a texture that will probably make a different artifact on the rendered final video, it probably will look like a ghost, which you ould patch making a second pass in Blender without the object, which leads us to step 1, making some kind of additional pass inside Blender.