PS. 1.7.5 Error if increasing product quantity (jumps back to minimum quanity)

[david45]

Hello everybody

I'm using the Prestashop Version 1.7.5.1 and if i increase the product quantity after clicking at the "add to cart" button, the quantity will jump back to the minimum quantity but it will change at the right side. Does somebody know what might cause this issue?

Thanks in advance.