When trying to use the anvil, you can put the items in, click the new enchanted item, but you don't get the newly enchanted item. Anvil makes the sound and then items in all 3 slots disappear.
MC-91631
Anvil consumes item
Resolved
Duplicate
0
Thank you for your report.
However, your ticket has been resolved as a duplicate.
This issue has been linked to the original bugreport: MC-91521. You can find or add further information on that report.
Please search before reporting any bugs, as it's likely that one exists already.