UV scale problem with objects imported from Sketchup into Twinmotion 2024.1

I have an old uv scaling problem.
The problem affects maps applied to objects imported from Sketchup with the latest version of the plugin, in the latest version of Twinmotion (2024.1).
The materials applied to these objects are 100 times smaller.
I noticed that the problem occurs when no material has been applied to the imported objects in Sketchup.
The problem does not persist when the faces of the object (not the object as a group) have materials applied directly in Sketchup.
This is an old problem that I managed to solve in the past by playing with UVs directly in Twinmotion.
Unfortunately this trick no longer works with the latest version of Twinmotion (2024.1).
Can anyone tell me how I can solve it?