Off and on all day my character has been turning into either a black or yellow chocobo. The first time this happened I was in LaLoff fighting the Ark Angel Mithra. I was unable to change equipment and I was moving very slowly. I was showing as my regular character (Elvaan F) on my friend/party member's screen. I died and was still a chocobo and did not change back until about a minute after zoning out of the fight.

The 2nd time this happened, I was standing idle near the AMAN NPCs in Bastok Markets. I randomly changed back to my character about 3 mins later.