ZwiftHQ pushed out a small update last weekend for all platforms. According to Game Master Jon Mayfield:
It addresses an issue that could cause workouts to ‘freeze’ and enables support for having events go in the reverse direction. We’ll be cautiously rolling reverse events out so please let us know if you see anything out of the ordinary if you happen to participate in one.
The reverse events functionality is exciting, as this should make races feel much less “crowded” by other riders on course. Since Zwifters tend to ride in the forward direction by default, running races and group rides on reverse courses will reduce the number of non-participant riders who interfere with the rider group.
It should also reduce instances of Zwifters getting “swallowed” as they are passed by large group rides.
Keep up the good work, ZwiftHQ!