I have imported an fbx into Unity, and the center is at the bottom of the grenade.

But this is not what I want. The origin / center should be in the middle.

To set the origin / center correctly, I import the fbx into Blender.

In Blender, I set the geometry to the 3D cursor, and the origin as at the same location.

This is what it looks like this:

It looks perfectly fine and as I need it.

Then I export it as an fbx, and right after saving, it looks like this in Blender:

Why does the center jump back to the bottom?

And then in Unity, I have the same problem again.

What might be the problem here?

Thank you!

I have imported an fbx into Unity, and the center is at the bottom of the grenade.

But this is not what I want. The origin / center should be in the middle.

To set the origin / center correctly, I import the fbx into Blender.

In Blender, I set the geometry to the 3D cursor, and the origin as at the same location.

This is what it looks like this:

It looks perfectly fine and as I need it.

Then I export it as an fbx, and right after saving, it looks like this in Blender:

Why does the center jump back to the bottom?

And then in Unity, I have the same problem again.

What might be the problem here?

Thank you!