I did a coop run in sector 9 during the the last incursions 5 day cycle (Mar 2-7) and we finished that on Mar 4. The 6* champions used during that run are still showing on cooldown, even though this month's side quest is just supposed to have a 5 minute cooldown. I'm sure this issue won't be addressed by the time the cooldown for my champs is over, but just wanted to bring it to the attention of the team, hopefully it can be addressed for other people who ended their runs later.
@Kabam Jax