[GNC] Advanced Portfolio report of basis

[Fred Tydeman]

I have a stock that has had a few Return of Capital transactions.
They have been recorded as sell of zero shares at zero price for the
Return of Capital dollar amount.

When I look at the Advanced Portfolio report for that stock,
the Basis price is the original purchase amount.  I am expecting that
the Basis price to be original purchase amount - (sum of Return of Capital).

Did I record Return of Capital wrong?
Is there a bug in the Advanced Portfolio?

Is there a better way to find the basis of a stock?

GnuCash 5.14 on Fedora Linux 44