I followed the guide and attempted to import from IBKR. However, I received several pages of Unparseable number: "" exceptions. Is this feature broken?
Well, you are not providing sufficient information in order to help you.
So, up to now, there is nothing broken.
Sorry, didn’t get to retract my post in time. I followed the instructions more closely and it succeeded. Incidentally IBKR doesn’t offer a tax option for the export, at least in Canada.