Getting Error - "There is circular chain of references among the Highlighted element"

[aniket_pachore]

Hello Everyone,
I am copying the elements from DocA to DocC and also from DocB to DocC.

// 1️ Copy elements from docA (no offset)
XYZ offsetA = new XYZ(0, 0, 0);
CopyElementsWithOffset(docA, docC, offsetA, comparisonRows);

// 2️ Copy elements from docB (with offset)
BoundingBoxXYZ bboxA = ElementComparer.GetTotalBoundingBox(docA);
double offsetX = bboxA.Max.X - bboxA.Min.X + 10;
//double offsetX = 10000;
XYZ offsetB = new XYZ(offsetX, 0, 0);
CopyElementsWithOffset(docB, docC, offsetB, comparisonRows, highlightMap, newColor, modColor, activeView);

and using below code line of code I am copying

private static void CopyElementsWithOffset(
    Document srcDoc,
    Document targetDoc,
    XYZ offset,
    List<ComparisonRow> comparisonRows,
    Dictionary<string, string> highlightMap = null,
    OverrideGraphicSettings newColor = null,
    OverrideGraphicSettings modColor = null,
    View activeView = null)
{
    using (Transaction tx = new Transaction(targetDoc, "Copy Elements With Offset"))
    {
        tx.Start();

        var elems = new FilteredElementCollector(srcDoc)
            .WhereElementIsNotElementType()
            .WhereElementIsViewIndependent()
            .Where(e => e.Category != null && e.Category.CategoryType == CategoryType.Model);

        foreach (Element elem in elems)
        {
            try
            {
                GeometryElement geo = elem.get_Geometry(new Options());
                if (geo == null) continue;

                List<GeometryObject> transformed = new List<GeometryObject>();

                foreach (GeometryObject g in geo)
                {
                    if (g is Solid solid && solid.Volume > 0)
                        transformed.Add(SolidUtils.CreateTransformed(solid, Transform.CreateTranslation(offset)));
                    else if (g is Mesh mesh)
                        transformed.Add(mesh.get_Transformed(Transform.CreateTranslation(offset)));
                    else if (g is GeometryInstance gi)
                    {
                        foreach (GeometryObject ig in gi.GetInstanceGeometry())
                        {
                            if (ig is Solid s2 && s2.Volume > 0)
                                transformed.Add(SolidUtils.CreateTransformed(s2, Transform.CreateTranslation(offset)));
                            else if (ig is Mesh m2)
                                transformed.Add(m2.get_Transformed(Transform.CreateTranslation(offset)));
                        }
                    }
                }

                if (transformed.Count == 0) continue;

                // ✅ Use same category as source
                //ElementId catId = elem.Category != null ? elem.Category.Id : new ElementId(BuiltInCategory.OST_GenericModel);
                ElementId catId = new ElementId(BuiltInCategory.OST_GenericModel);
                DirectShape ds = DirectShape.CreateElement(targetDoc, catId);
                ds.SetShape(transformed);

                // ✅ Find corresponding comparison row
                ComparisonRow row = comparisonRows
                    .FirstOrDefault(r =>
                        r.Host?.ElementId == elem.Id ||
                        r.Linked?.ElementId == elem.Id);

                if (row != null)
                {
                    // If element comes from docA → use host parameters
                    if (row.Host != null && row.Host.ElementId == elem.Id)
                        ApplyStoredParameters(ds, row.Host.Parameters);

                    // If element comes from docB → use linked parameters
                    if (row.Linked != null && row.Linked.ElementId == elem.Id)
                        ApplyStoredParameters(ds, row.Linked.Parameters);
                }

                // ✅ Highlight only for linked (docB) new/modified
                if (highlightMap != null && activeView != null && row?.Linked != null)
                {
                    if (!string.IsNullOrEmpty(row.Linked.IFCGuid) &&
                        highlightMap.TryGetValue(row.Linked.IFCGuid, out string status))
                    {
                        activeView.SetElementOverrides(ds.Id, status == "New" ? newColor : modColor);
                        CopyAndHighlightHelper.LastCopiedElementStatusMap[ds.Id] = (row.Linked.IFCGuid, status);
                    }
                }
            }
            catch
            {
                continue;
            }
        }

        tx.Commit();
    }
}

Does some elements are linked/constraint to old document i.e. (DocA and DocB).
or the issue is different?