As you are likely familiar, ocean carriers are in the midst of changing their alliance partners, which will result in changes to vessel rotations, ports of call, transit times, terminal preferences, etc.
As these alliances morph and come into focus, we expect hiccups in the land side operations as well. System integration between ocean carriers and new terminal operators could lead to data integrity and timeliness issues. Terminal calls and cut offs could be a moving target.
Please check and recheck container statuses, pick up and return locations and booking information. All signs point to it being unsettled for some time.