When using the /enchant command to enchant a items the glowy effect will be applied to the items, but when you mouse over it, it will not show the enchantments it has.
Linked issues
duplicates 1
Comments 2

Duplicate of MC-29462, please use the search function to see if your bug has already been submitted. Currently over 57% of tickets are being resolved as duplicate.
I am able to reproduce this issue. In addition, repairing/renaming the enchanted item in a anvil causes it to disenchant.