Strange lines on the ceiling

Hello can somebody help me with these lines on the ceiling?

Sketchup is good. Shapespark i got strange lines.

best regards,
Marco de Vries

Could you share a link to the uploaded scene for analysis? If the scene is not public please send it via forum’s PM or

1 Like

im having same issue,
is it because of triangulation of polygons?
what i do is in skecthup i add line to somehow connect atleast 3 vertex (points) to minimize this,
sometimes it works sometimes not.
how do we actually deal with this, thank you

sent the file to your email.

This is fixed in new update! Perfect