after updatting to 1.15 the problem is back....

after updatting to 1.15 the problem is back....

Damn it! 🤦‍♂ Sorry for that, @Jeroenleender. I wasn't able to reproduce this issue in the first place and thought that with 1.14 it would be fixed, which apparently it was. However, 1.14 seem to break functionality for non-grouped products. That's why I deployed 1.1.5.

The issue that you are facing is that when using grouped products, no quantity is visible at all, right?

When u open a grouped product and get an overview of simple products, the default value should be 0.
Your current option can't handle zero values so it won't show any number. + and - buttons don't work then untill u add a number yourself as a value.

When i use my fix all my grouped and simple products work correctly.
I can't test variable products tho.

That's good to know. Thus, I need to figure out how to detect whether a product is a grouped product. If so, handle the logic of 1.14, otherwise handle the logic of 1.1.3 resp. 1.1.5. Shouldn't be too complicated to implement. Sorry for the inconvenience caused by the latest release, though. For the time being, you could use WP Rollback to rollback my plugin to the previous version until I release 1.16.

if( $product->is_type( 'simple' ) )
since they are simple products would work, but this also effects normal simple products.
So i think what would be better is to check the array and see if something matches like child parent connection that doesnt include normal simple products.

For myself i just used he former fix on the latest patch since that also works

or maybe something like this.....

if( $product->is_type( 'simple' ) && $input_value == '' )