Zwift won't reconnect Ant+ if USB cable gets pulled out

 I was riding the Garneau Sportive Series today when my USB cable going to my ANT+ dongle got pulled out of my computer. I put it back in, but Zwift would not reconnect to the sensors. Had to close down Zwift to get things reconnected. Is this the way it is supposed to work? Kind of a bummer I could not finish the Garneau Sportive Series ride.