Problems when creating pack of existing products

[vincentdenkspel]

Hoi,

When creating a pack of existing problems i encounter a problem. I very little popup screen appears and i think this where is should enter the letters of the products i would like to select. However, it is so small it is not workable. I'm the only one who encounter this problem or is it a bug, I've made a short screencast to show the problem. It can be found here https://d.pr/v/jqXZTP Thanks.

[vincentdenkspel]

thanks for your swift reply.