Clipping leftovers - how to get rid of them and how not to get them?

[Falrinth]

When i use clipcurve it seems to work well untill i rotate the camera a bit. Then i see these artifacts leftovers. When i try to clip them aswell they only change, but i still get them at some angle. Why does it happen and how to clip to not get them?

Attachments

[_4Z4R]

Use trimCurve insted of clipCurve.
Other option is Active the Polygroup when Clipping. Ctrl+Shift+Spacebar. Then you can hide that polygroup and delete hidden. Dynamesh or close holes.

[Falrinth]

Thanks i will try that.