Might be a bug outside your control ... but ... if you have FB messages open in chat, i.e. "FB Chat", and switch to the VC game in FB (not canvas version), in the same window, the FB Chat disappears. Looks like a bug that does not affect everyone. Has this been seen in the FB player world and in the developer world, and it will be fixed soon? It might be browser dependent (have not surveyed on that).
Hmm, this sounds like it's something on Facebook's end, but we'll look into it. Just tested it out myself, and I was able to reproduce the issue on Chrome. How long have you been experiencing this issue?
