csv error since upgrade

HI,

Since I upgraded to the newest version I get an error when I use csv import:


The column "product_name" is twice in your CSV. Only the second column data will be taken into account.
The column "product_description" is twice in your CSV. Only the second column data will be taken into account.
The column "product_code" is twice in your CSV. Only the second column data will be taken into account.
The column "product_quantity" is twice in your CSV. Only the second column data will be taken into account.
The column "product_published" is twice in your CSV. Only the second column data will be taken into account.
The column "product_tax_id" is twice in your CSV. Only the second column data will be taken into account.
The column "product_type" is twice in your CSV. Only the second column data will be taken into account.
The column "product_vendor_id" is twice in your CSV. Only the second column data will be taken into account.
The column "product_manufacturer_id" is twice in your CSV. Only the second column data will be taken into account.
The column "product_access" is twice in your CSV. Only the second column data will be taken into account.
The column "categories" is twice in your CSV. Only the second column data will be taken into account.
The column "price_value" is twice in your CSV. Only the second column data will be taken into account.
The column "price_currency_id" is twice in your CSV. Only the second column data will be taken into account.
The column "price_access" is twice in your CSV. Only the second column data will be taken into account.
The column "files" is twice in your CSV. Only the second column data will be taken into account.
The column "images" is twice in your CSV. Only the second column data will be taken into account.

What can this be?

Thanks

OK

Good to know. Thanks

Sjaak