[GNC] Error with Advanced portfolio report

[David T.]

If someone could advise on further steps for the following...

Gnucash 4.1, Windows 10

Attempt to open Advanced Portfolio report (Reports->Assets & 
Liabilities->Advanced Portfolio) yields the following:

Report error

An error occurred while running the report.

In c-interface.scm:
      24:4 19 (gnc:call-with-error-handling _ _)
In ice-9/boot-9.scm:
     829:9 18 (catch #t #<procedure ea70048 at c-interface.scm:25:6 …> …)
In c-interface.scm:
     29:37 17 (_)
In unknown file:
           16 (eval-string "(gnc:report-run 5)" #<undefined>)
In ice-9/boot-9.scm:
    2312:4 15 (save-module-excursion #<procedure 11db9090 at ice-9/ev…>)
In ice-9/eval-string.scm:
      38:6 14 (read-and-eval #<input: string 11da8b60> #:lang _)
In report-core.scm:
     689:4 13 (gnc:report-run _)
In c-interface.scm:
      66:2 12 (gnc:backtrace-if-exception _ . _)
      24:4 11 (gnc:call-with-error-handling _ _)
In ice-9/boot-9.scm:
     829:9 10 (catch #t #<procedure ea70000 at c-interface.scm:25:6 …> …)
In c-interface.scm:
     28:40  9 (_)
In report-core.scm:
    691:29  8 (_)
    673:25  7 (gnc:report-render-html #<<report> type: "21d7cfc59fc7…> …)
In standard/advanced-portfolio.scm:
   1057:10  6 (advanced-portfolio-renderer _)
In ice-9/boot-9.scm:
     829:9  5 (catch div/0 #<procedure 11dc4e70 at standard/advanced…> …)
In standard/advanced-portfolio.scm:
    428:10  4 (table-add-stock-rows #<<html-table> col-headers: (("A…> …)
In srfi/srfi-1.scm:
     640:9  3 (for-each #<procedure cabab40 at standard/advanced-por…> …)
In standard/advanced-portfolio.scm:
    460:21  2 (_ _)
In srfi/srfi-1.scm:
     640:9  1 (for-each #<procedure 11da87a8 at standard/advanced-po…> …)
In standard/advanced-portfolio.scm:
    515:41  0 (_ #<swig-pointer Split * f68fad0>)

In procedure module-lookup: Unbound variable: parent-or-sibling?