That is to update your sketchup program profile to the model one you just opened in case you want to use it on another project next time , has no bearing on the saved file!
I just uploaded a model with the updated style that on my sketchup was already updated…and the thumb still shows profiles !
So it is a 3d warehouse problem that I didn’t have a week ago!
I’ve attached the screen shot taken before I saved and re-uploaded the model that looks ok in sketchup but the thumb doesn’t render after upload in 3d warehouse…!
Notice the heavier lines of the rendered model on how it appears on 3d Warehouse below and the same model opened in Sketchup 2017 with lighter lines above it
