As we’ve discussed before, Transmutr performs the scaling trick to avoid tiny faces not being created by SketchUp.
But it seems that when the scale correction is too high, this zooming artefacts start to appear.
In v1.2.0, we have limited the scale correction to a maximum of 100000 to avoid that, but it seems that in your case it is still too much?
Could you send me the file to [email protected] so that I can perform some tests?
Thanks