After enabling the aliasing setting, on the sketch, the dashed line seems to line a solid line.
did anyone know how to fix this?
You might get better help if you tell us your Creo version.
If you revert this setting (to see a dashed line again) and then activate one by one - which one triggers the solid line?
Also keep in mind that you graphics card drivers may enforce anti-alias settings (if you have activated that yourself, they shouldn't do that by default), for example Nvidia Control Panel or Radeon Adrenalin.
Thank you for the advice, the version that I'm using is creo 8.0.4.0, and currently, I'm using AMD Ryzen 5 PRO 66500U with Radeon graphics
You're welcome 🙂
Did you try this step-by-step debugging?
If you revert this setting (to see a dashed line again) and then activate one by one - which one triggers the solid line?