Hello! As I see it, your component is not fully compatible with the latest

Directory Multiselect Combo Box
1

Hello!
As I see it, your component is not fully compatible with the latest vaadin version? In the console I get an error:

this.$.comboBox.$.dropdown._setOverlayWidth is not a function
    at eval (multiselect-combo-box.js?48c8:481:1)
2

Yepp...I am also experiencing this issue

3

I have the same issue.