Pipe Structure rim elevation not equal to surface (Not a pipe clearance issue)

[NikkiRA]

We have noticed on a number of jobs lately that a few structures that are supposed to be setting the rim elevation to a referenced surface have elevations at the rim not matching the surface.  This is not a barrel clearance issue. It affects some structures in a job and not others. The amount of disparity is different in each case, and I can change the rim elevation manually to the correct elevation.  But that defeats the purpose of the automatic adjustment. Anyone know why this is happening and/or how to eliminate the error?

See first image: In the structure properties box the FG surface is referenced, Surface Adjustment value is "0.00", and Automatic Surface Adjustment is set to "true". The surface elevation at insertion point is 170.14, in this case - But the Insertion Rim Elevation is 170.37.  ????

I have to change the Automatic Surface Adjustment to "False" in the next image, followed by re-selecting "True" in the third image.....

And NOW the rim elevation is correct - It is not a reasonable solution to select every structure in a job after every revision and individually verify the rim elevation is set correctly.

[MMcCall402]

Is the structure close to a near vertical portion of the surface?

I'm wondering if the location is getting caught up is some minute rounding of values near a vertical portion of the surface, and or within a tessellated curve of a vertical portion of the surface. 

[NikkiRA]

No.  The structure is situated 1 foot behind the back of curb.

The weird thing is the properties box shows that Civil is reading the surface elevation correctly at the top of the box - just inserting the box incorrectly. 

[Anonymous]

I don't know the solution to automatically update all structures in the drawing, but the problem is caused when a connected pipe has an invert higher than the surface rim elevation. As a preventative measure, if you're going to move or edit a structure and a connected pipe, do the pipe first.

[jmayo-EE]

I don't have a solution but I do wonder if swapping the part will get it back to the surface elevation. This would seem faster that going through the strc properties dialog. This would of course require as mentioned above that the pipe is low enough not to have clearance issues with manhole cones (pipe do not connect to cones) and'or barrel clearance.