Yup. Last night I tried transferring a Three Little Words Pulse Rifle onto my Warlock from the Vault, and it disappeared. It was during a crucible loading screen. It was NOT the vendor version, so I am slightly ticked. There seems to be basically no way to fix it, and it's probably lost forever. Reminds me of losing a Cryptic Dragon with explosive rounds way back from a marionberry or rabbit or something, and going back into my vault and never seeing it again. I will probably have to kiss this one goodbye too, and not use the app to transfer anything like the poster below mentioned, until they fix this. Please Bungie, I'll lose a dirty pulse rifle and be happy if it means you guys can use this info to keep it happening from my Timur's Lash or Gjallarhorn in the future. DO SOMETHING PLEASE!