Why elasticsearch ingest-attachment always? missing after you update zammad you need reinstalled again. Thats why you got an error after update the zammad system.
I solved that problem because of searching here in community beacuase other user also encounterred the same problem that after update zammad ingest-attachment is gone
and i only read a command i need to execute after update is zammad run rake searchindex:rebuild, if im not mistaken…