Interactive background issue with FormKit

[Vant0]

Version

vue-final-modal: v4.5.4
vue: v.3.4.29

OS

Mac

Reproduction Link

https://github.com/Vant0/formkit-vue-final-modal

Steps to reproduce

If you open the modal, each FormKit input in the background is starting to behave strangely.

The datepicker and date will not show the datepicker overlay anymore.
The autocomplete will show it is dropdown but will not close anymore.
The dropdown doesnt show the overlay at all.
This behavior is then permanent also when you close the modal.

If you open and close the modal (without touching the inputs), the FormKit inputs are behaving as expected.

What is Expected?

When the modal is open, the FormKit input elements in the background work normally.

What is actually happening?

No idea