Dear,
we encounter a problem with the plug-in indicated in question.
Everything works regularly in the “cart” page but not in the “off canvas” cart. (the calculations are made with errors, specifically when we try to decrease or increase the quantity of the product already in the cart)
We have written to the developer and he tells us that there are probably problems with the theme picker.
Now we use the plug-in picker but have yet issue with decrease or increase the quantity.
Can you help us understand if there are known compatibility issues?
Thanks for support.