Q: Why the Repricer Express CSV file generated does not report the correct prices?
A: Are you only looking to pass supplier costs (supplier price + supplier shipping) to Repricer Express? If so, please go to Settings --> Marketplaces --> Amazon --> Select the country you are selling on and delete the long written selling price formula there and replace it with just (vendor_price+vendor_shipping)
Then save settings.
Then go to your grid and go to Batch Options --> Remove All Per Item Formulas (this will get rid of any override formulas, if you have any and set them back to use the default formula in your marketplace settings).
Changing it to just include supplier price and shipping should resolve this issue. Finally, give it about an hour to update on the CSV link.