No power, no cadence

Hi, to test if it’s a known issue.
Right after a workout that went well, no technical issue, and after exit the road an record of the workout, i decided to tide wit a pacer. Do without leaving zwift apps i directly select a pacer (1.8 w/kg) and get into the pacer group. All looks fine, pacer and group appears, message telling me i ve few sec to join with assistance however when i start pedaling the power and cadence did not start as if i was not connected.
I leave the pacer and check my connection, all was fine.
Back with pacer, same issue.
Is it a known issue? Any way to fix it?

Used to happen with me, exiting the game and restarting usually fixed it