Shape appears different in edit mode, object mode and render [duplicate]

Question

I'm trying to animate a figure to jump and the animation runs fine when I play it in timeline but when I render image/animation, it also shows the initial T-pose figure that I started with: what i found is that in the edit mode the shape of the figure is still in the initial t-pose and the armature seems disconnected from the object

in edit mode: whereas in the object mode the armature and body are connected and not in t-pose

in object mode:

is it because I had not applied the armature modifier before making the animation?

Answer 1

It is because you have a duplicate of your object in you scene. The one named tpose_human_body. I see you have it hidden but blender still renders it. If you want it to not be rendered move it into a new collection and disable the collection from the view layer by unchecking the tickbox near it.

There was a simpler way to disable render for objects before but it has changed and I don't know how to do it in 2.8.

EDIT

In 2.7's Outliner, after each Object's name there was the Restriction Toggles button :

The right most button (the one that looks like a camera) is the one used for disabling/enabling an object for render.

In 2.8+, one might think that those buttons were gone but they are just hidden. In the Outliner's header, there is a Filter dropdown :

If you click on this you will see a section called Restriction Toggles :

You'll find the one that you're looking for there :

If you enable it, you should see it in the Outliner now :

Clicking on it will toggle between visible and invisible in renders.