(03-08-2023, 05:00 PM)Alex Wrote:Did you import a STEP file or did you use a CAD Plugin?
               
It seems like the plane was imported as a curve. Make sure you have this setting disabled before importing:
               
               
You can reach this menu by going into:
Tools⮕Options in the CAD tab.
               
               
               Alternatively you can split the object and delete the curves manually.
               
               
               Feel free to attach your station and I can help you with it.
              
              Thank you for your reply.
              
I have disabled the setting and reload it agian, but nothing helps.
Instead, I could delete the plane as you recommanded with "right click -> split object " function.
              
The station is also attached in case you want to investigate it.
              
Anyway, the problem is resolved. Thank you again :)