Unwanted sphere appearing

[moritz_kolbeck]

 

Hello everyone, I hope you can help me. I am relatively new to fusion360, so my problem solving skills are limited.

Today, something strange occured.

Here you see my perfectly fine body, ready to be exported as a net.

 

When imported to cura to prepare for printing, a strange sphere appeared in the body, partly visible in red at the top, also visible through the before open vent slots:

 

Investigating in fusion, I found out that the sphere also seems to appear, when I cut the body in half vertically.

I desperately hope to find someone here to tell me how to get rid of the sphere, as there are hours and hours of work at stake.

Many thanks in advance!

[TheCADWhisperer]

Can you File>Export your *.f3d file to your local drive and then Attach it here to a Reply?

@moritz_kolbeck 

Are there any unresolved issues highlighted in your Timeline?

Does Ctrl b (CMD b) return any errors?

[moritz_kolbeck · Accepted solution]

I managed to solve the problem by removing and replacing the upper half round part. I think fusion created some artifact because some things didnt add up correctly. 
When I deleted it and rebuilt by using a new sketch and element, the problem was gone.

thanks for your help!