It Seems Bulk Printing is Broken for me.

After Clicking “Bulk Print” it loads and Stuck in a Blank Page.
No Error. Just Stays there (Blank Page)

Sometimes the Lables are even printed, sometimes not.

I Can print every Order individually….but not as Bulk.

Some tips how to get this working ?

(And yes, i Filtered the Orders to have the Same DHl Pruct Target, it also don’t work if i only choose 1 Oder and try Bulk print)

The page I need help with: [log in to see the link]