Grading groups and multiple feature lines, very buggy!!

[Waterfree]

Hey, I have this problem when creating grading groups with more than one feature line in them. It seems really unstable when you trying get the grading to connect. I have tried to create two separate grading groups in one site or two feature lines in one grading group. And the result is the same, the grading that will be create can sometimes look oki, but suddenly they tend to disappear or look weird... Tried to Google this problem, but no luck. Hope you guys know a good way to work around this problem.

Cheers!!

[ToddRogers-WPM]

Try the undocumented command FINDSITEOVERLAPS.

[Waterfree]

Hey again, yeah I tried this now, and after executing the command, it says no overlapping surfaces. So still the same problem:/

[troma]

Give your system spec's & program spec's, and a bit more detail on what you're doing exactly.

Gradings are always buggy, save often.  There may or may not be some helpful ideas here if you give some more information.

[Waterfree]

Civil 3d 2013 62 bit.

i7-2600 @ 3,4 ghz

Memory 16gb

Intel SSD disk

Ati FirePro V7900

Trying to create a modified surface for a industrial area, so we need to compute and "mold" the surface, so the client can see the effect in the landscape.