Importing CSV to update quantities results in zero stock amounts

-- url of the page with the problem -- : avonrivercomputers.com.au/mantest
-- HikaShop version -- : 4.3.0
-- Joomla version -- : 3.9.20
-- PHP version -- : 7.3
-- Browser(s) name and version -- : Vivaldi 2.8
-- Error-message(debug-mod must be tuned on) -- : No error message

Trying to get the mass action working to update stock quantities from a CSV file. I select the CSV file with the quantity updates and select to upload and I have verified and it gives me a valid file. All good so far. I have selected Save the products on Mass Action CSV import checkbox is ticked. I have set the limitations to 5000, well above the actual number of products. I have set the actions to Display the results and ticked Product code, product name and product quantity and if I process this, it displays the product code, name and quantity exactly as I want. When I select the And update the values, product quantity=int is where it all falls apart. The values get updated to zero and even if the values do not change, ie they are the same value in Hikashop as the CSV, Hikashop get updated to 0. I have read the docs, tutorial and also tried searching the forums and I believe that what I am doing is correct so the crux of my question is that how can it be that when I display, the result it is correct but when I try to update with the same result, it gives me a zero where the quantity has a number. Any pointers would be greatly appreciated, thanks.