thank u
i will try this

after using the shape bender plugin to bend a fairly complex shape to a specified curve, some random edges of the rendering were left out and dissapeared
otherwise it seemed to work fine (besides making sketchup not respond for a while because i am on a slow and old computer)
these were not in the original rendering before the object was bent
what could have gone wrong and is there any way to fix this
pictures of both before and after the bending are attached