Error Message Maximum dependency callback iterations exceeded.
This error is displayed when a hatch or pattern is too complex to be resolved. It typically occurs when copying the element or trying to insert it into another file.
In the case of a DWG solid hatch the workaround is to save the file to DGN where the solid hatch will become a fill and will no longer cause the error.
In other cases removing the offending hatch or pattern will solve the problem.