Why are Gazebo textures and colors mixed up with background windows or black?

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Hi,

I'm running Gazebo 11.5.1 and ROS Galactic on Ubuntu 20. When I load the house model in gazebo, I get the following.

The textures and colors are not right and mixed with the visual of the other software windows that I'm running. Any ideas on what could be causing the issue?

More details:

• When I start an empty gazebo world and add objects to it, they are loaded just fine.
• If I save the model and load it, the objects have weird appearance again.

• If I add a new instance of an object, it appears the exact same as the one in the model with weird texture and color.

  Tested it it with a fresh Gazebo build from source too but the problem is still there. This is really blocking because I'm testing a visual slam algorithm so the scene appearance is critical.

Any help would be appreciated!

Thanks,

Jas