Graphics Card shows "broken" misaligned alignment

[erik]

Anyone else have this happen?  I seem to have this occur on two different machines and builds and surprised to see it.  The image shows an alignment that is not rendered as connecting correctly between a line and an curve.  It does not happen for all instances, but it does for many.  I am using  C3 2016 with the latest service packs.  My graphics card is NVIDIA Quadro K1200.  Driver 21,21,13,6939.  

When I turn off hardware acceleration the line renders correctly.

Any thoughts?  Is this a known issue?

[Anonymous · Accepted solution]

It is known issue: https://forums.autodesk.com/t5/autocad-civil-3d-forum/c3d-2016-curves-incorrectly-displayed-with-mul...

I'm on 2017, and have the same issue. I chose to keep HW Accel enabled, and deselected "High Quality Geometry."

[erik]

Thanks!  My search did not bring up that post.  Turning off High Quality Geometry does make it go away.

[Anonymous]

The problem came back. I toggled Whiparc back to 0 to fix it. Not sure why it keeps toggling to 1.

[AllenJessup]

Whiparc is a strange one to keep coming back. Are you using the SYSVARMONITOR? Whiparc is an available variable in the monitor but would have to have been added. You might try adding to the monitor with a preferred value of 0. At least that would tell you when it changes

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