Problem when rendering with sketch up v-ray

Did you model this in SU2014? Your profile says you are using 2018 but when I open it I get a message indicating it’s a 2014 file.

Switching the face style to Monochrome shows there are quite a lot of back faces. Those faces should be showing the white front face color, not the blue back faces.

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Screenshot - 3_30_2021 , 1_36_18 PM887×784 53.8 KB

I did a bit of cleanup on your model. Fixed the incorrect Layer/Tag usage…
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Purged unused stuff…
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And got rid of some stray geometry. Notice the size of the bounding box here:

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Screenshot - 3_30_2021 , 1_38_48 PM1117×790 17.3 KB

There’s some more cleanup going on. I’ll share the model file with you when it’s finished. You’ll still need to correct the face orientations.

You really should get in the habit of purging the unused stuff from your models on a regular basis.

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