Hi,

after searching for a solution I found a semi solution that brings another problem, and you can find them in the links below.

dropdown-not-overflowing-in-a-modal, dropdownselect-list-not-overflowing-outside-of-modal

So the issue there is the dropdown doesn't overflow inside a modal. So the solution discussed in those topics is to disable the modal overflow property, like this. 

.modal-content {
    overflow-y: unset !important;
}

.modal-wrapper {
    overflow: scroll;
}

The problem with this approach is that, by disabling the overflow, if you have a modal with more content besides the DropdownSelect, it will overflow out of the modal:

Without the fix above:

With Fix:

In other words, adding that CSS line breaks the modal responsiveness.

Any idea how to make this right? 

Thanks,

João Franco