Adding to what @RDavis2528 said about the double foreign tax credit, I think he is right that thie issue was that the user reimported the entire brokerage file while only deleting the 1099B. I did this once where I had entered the 1099 DIV, INT etc. and only imported the brokerage data once getting to the 1099B portion of TT (a lot of entries). Doing that doubled up all the 1099 DIV, INT etc. entries I had previously added. That is, the import function used when entering the 1099 B seems to import the entire brokerage file, not just te 1099 B portion.
