Problem with sample products

Hi,

Hoping you can help.

I am using your plugin with a custom script from Business Bloomer to add a free sample button to my product pages.

https://www.businessbloomer.com/woocommerce-order-free-sample-single-product-page/

You setup a Sample product which is used for all products and the actual product name is appended in the cart.

THe problem is with your plugin enabled it wont let me add 2 of the actual product to the cart even though there is no limit set on the actual product. I have a limit of 4 set on the Sample product which works fine.

But if you try add 2 of Product A to the cart it says only 1 is allowed and I have not set this limit anywhere.

I tried setting the global limit to 10 just in case but it has not fixed the problem.

You can add 4 samples as I have set and the limit works fine. I just cant work out where this limit of 1 is coming from for the other products?

They are not set to be sold individually either.