You’re getting multiple curves due to the nature of your wall joins and an other wall which touches that space. You should look at this post for a possible solution and also read @Konrad_K_Sobon explanation which is more detailed than mine:
Related topics
| Topic | Replies | Views | Activity | |
|---|---|---|---|---|
| Problem with Room.Boudaries | 3 | 289 | August 11, 2021 | |
| Room boundaries are divided into multiple line segments | 2 | 139 | April 15, 2024 | |
| Room Boundary Strange Extra Points | 11 | 225 | December 3, 2024 | |
| Get Room boundaries as Lines | 10 | 1609 | February 17, 2023 | |
| ERROR : Polycurve from Room FinishBoundary lines produces Multiple WIRE | 12 | 2043 | January 27, 2023 |