[GNC] .qfx import not remembering account assignment

[Dale Alspach]

Version: Build ID: Flathub 5.9 on linux mint 21.3

The last few months I have been importing investment transactions from TIAA
and each time the importer asks me to choose an account for Unknown
Investment Account xxxxx for the same four TIAA accounts. The xxxx
information precisely identifies the TIAA account so I am sure that the
same accounts are appearing each time and I am giving the same assignment
in my hierarchy. I do this requested assignment and the import works fine.
However the importer seems to forget the assignments immediately afterward.
I don't know if this is important but I actually assign two of the TIAA
accounts to one asset account and the other two to another asset account.
Is anyone else seeing this annoying problem?

Dale