Do you see console errors when 'Add Items' is clicked or before?
If this is a custom multifield xtype make sure the js is getting included or available when the dialog is open.
Note: For custom multifield xtype the saved node structure of the data for classic vs touch ui will be different, you will have to consider that as well.
Do you see console errors when 'Add Items' is clicked or before?
If this is a custom multifield xtype make sure the js is getting included or available when the dialog is open.
Note: For custom multifield xtype the saved node structure of the data for classic vs touch ui will be different, you will have to consider that as well.