Wx can never be poisoned so shouldn't even start as such. See title and steps below for details.
Steps to Reproduce
1. Play any player (e.g. Wilson) susceptible to poison in Hamlet or SW. 2. Gather all Things and assemble the station for World hopping. 3. Get poisoned. 4. Hop World. 5. In Select Character screen, select Wx-78. 6. In the next new World, Wx starts as poisoned and needs an Antidote.
This issue has not been confirmed by a developer yet.