hi we have an email template for our orders with this subject

{{block type="imprint/field" value="shop_name"}}: Rechnung Nr. # {{var invoice.increment_id}} für Bestellung Nr. # {{var order.increment_id}} 

since SUPEE-6788 the shop name is not printed, has anyone else the Problem?

The shop name under System->Configuration->General->Imprint->"Shop Name" is still filled for all stores