Pocket Wizard Transceiver 3 issues

Morning all. I've been having a problem with my Pocket Wizard Transceivers.
They work occasionally but when they misfire I find applying pressure to the transmitter on the hotshoe of my camera makes them fire?
Is this a cable issue? When I'm using them to fire the camera remotely it's never a problem as I'm using a different cable.
TIA.
They work occasionally but when they misfire I find applying pressure to the transmitter on the hotshoe of my camera makes them fire?
Is this a cable issue? When I'm using them to fire the camera remotely it's never a problem as I'm using a different cable.
TIA.