Steps to reproduce:

1) Create host
2) Create item -some name -some key -type: zabbix agent
3) save item
4) change item type to "Zabbix agent (active)"
5) Select item and use Mass update to change the type back to "Zabbix agent"

Result:
Observe the "No interface found" error message.

Expected:

It seems the mass update is doing things in the wrong order. Manual changing the type back to Zabbix agent works flawless.