Hello everyone! The team has a fix for this issue ready to go in a hotfix build later today. Until then, we continue to recommend that you avoid the Team Ranked queue—as matches will continue to crash and fail until the fixes can be implemented.
We are aiming to have this update released later today during the earliest window of opportunity! Once it is available, please ensure you have downloaded the latest build and then let us know if you continue to experience the same issue, at which point we will re-escalate it to the team.
Thank you for your patience; watch for the update (and more information) later today!