Vortex Zwift issues

Hi all, have used my vortex with zwift for years but just after the last zwift update I started a new ride and I wouldn’t start moving. Then after a couple of seconds I did start to move but only lasted for a couple of seconds then nothing. Went out and back in, now zwift won’t pair. I use an iPad, updated the firmware on the vortex and tried installing the zwift app on my iPhone to see if it would make a difference but no success.
Any advise/suggestions?