OS: Mac OS X 10.11.4
Time: Saturday, April 2, 2016, 16:06 (EDT) GMT-4
Frequency: Unknown. (Quest is not repeatable so I can't retry.)
World name: Tonberry
Character name:A'kira Chance
NPC name: Melkoko
Class/Level: CUL/60
Party or solo: solo
Area and coordinates: Limsa Lominsa Upper Decks (12, 13)
Steps:
1. Talk to Melkoko at the end of the quest "The Spirit of Hospitality" (Culinarian 60 quest)
2. Chat log shows:
[16:05]“The Spirit of Hospitality” objective fulfilled!
[16:06]“The Spirit of Hospitality” complete!
[16:06]You obtain 843 gil.
[16:06]You obtain a craftsman's competence materia IV.
[16:06]You obtain a craftsman's cunning materia IV.
[16:06]You obtain a craftsman's command materia IV.
3. Sprint to Aftcastle Aetherite Shard
4. Teleport to Hawkers' Alley aetherite
5. Open a retainer via the summoning bell to entrust and withdraw items
6. No materia present in inventory (90/100)

Although the chat log said I received the materias they have not been placed in my character inventory.

I switched to PS4 to force an inventory refresh after login, no luck, still no material in inventory.