Question Random light underneath object

Hello everyone,

I downloaded a model from sketchfab (fbx, no extra texture files) and imported it into my scene (Unity 2021.1.24f1). The object itself looks fine but there's one weird problem:

If you look at the object from the front or back, then you can see a weird light coming from below and when the object's positioned on the ground you can only see the light from a flat angle (probably less than 45°) - see screenshots below.

There's only a single point light in my scene, the rest is coming form the skybox. Trying to get rid of it I changed multiple things:

• Disable the point light
• Set the Environment Lighting to "Color" and turn down the Intensity Multiplier
• Give the object a different material, including Unity's "Default Material"

The light only disappeared once I used one of my own materials and changed the shader to an "Unlit" one. As soon as I set the shader back to "Default" the light is back. The model didn't come with an extra texture file, so I have to use the provided material.

What could be causing this and how do I fix it?

Here are two screenshots, including the (light) settings:

 

@KEngelsoft
Thanks for your reply!
My settings are fine then, correct? Is there anything I can do in the meantime? Any ETA for the 2021.2 fix yet?

 

@KEngelstoft
Sorry, were you talking about 2022.2 or 2021.2? I just updated to the latter (latest available for me):
The exact object in the images is inside a room with a single point light and it now doesn't show the weird light sphere anymore.
But I now also use 10 more of the same object (prepared one, then ctrl-d-ed and changed name+position, so same material,...) in another room with 3 point lights lined up and 6 of these objects have that light sphere, 4 don't. I moved objects around (re-baked the lightmaps multiple times) and it looks like the position doesn't matter - once an object is affected, it can even switch position with one that isn't but it'll still show the same light after re-baking.
Getting rid of the lightmaps ("Clear Baked Data") also gets rid of the light spheres.

 

@KEngelstoft
Thanks for the update! So it was 2022.2 (not 2021.2) after all. I can't use alpha versions for this project, so I'll just keep updating whenever a new version is released.