Importing CSV removes variant values

-- url of the page with the problem -- : 176.32.230.249/clydesdale.net/
-- HikaShop version -- : 2.6.2
-- Joomla version -- : 3.5.1
-- Browser(s) name and version -- : Chrome

Hello,
I have got a few products with variant values. I have created a CSV to update prices on these products. I have found that it updates everything fine but when doing so it also removes the values from the variant section even though there is no column for variant values on my CSV.

Is there a way to stop it doing this without having to also upload the CSV with the variant values on.

I have attached the CSV I upload to update the pricing.

Thanks

Hi,

Remove the product_parent_id and instead of using the Products>Import interface, do the import through a mass action (menu System>Mass actions) with a filter "CSV products".
It should allow you to update the prices without touching to the rest of the data of the products.