Looking in the preferences, I changed the "Furniture icons in plan" to "Top view" and objects are now displayed correctly.

However, it's still not the case in the left panel.

<t>Hi,<br/>
<br/>
Thanks for your answers. <br/>
<br/>
It seems the problem happens only on Ubuntu. I tested with Windows (the installer version from Sourceforge, not the one provided through the App store) and it works fine.<br/>
<br/>
Under Ubuntu, I'm using the tgz install, with the included ...

<r>Hi,<br/>
<br/>
Everytime I'm importing an object, the preview in the plan is always broken. <br/>
<br/>
However, the model is correctly imported and is working fine in the 3D view.<br/>
<br/>
Here is an example of a vacuum:<br/>
Preview while importing (OK) : <br/>
<IMG src="https://i.ibb.co ...