Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Dear Xavier Van Dyke,
From your description, it seems that you encountered a connection issue when you tried to log into Minecraft Education Edition on your Mac devices.
First, I recommend restarting your MacBook and trying to open Minecraft Education again > Make sure you are signing in with your school account. Then, check whether your macOS is up to date by going to Apple Menu > System Settings > General > Software Update.
If the issue persists, I recommend contacting your school's IT Help Desk and asking them to completely uninstall Minecraft Education from the school-managed MacBook. After they remove the application, restart the MacBook, install any available macOS updates, and then have Minecraft Education reinstalled.
Since this is a school-managed device, the IT team is best positioned to ensure the app is removed properly and to check whether any device policies or restrictions may be causing Minecraft Education to close unexpectedly.
Because this forum is majority focusing on Microsoft products, such as OneNote and Microsoft Teams. In this scenario, I suggest you can raise this question in Minecraft Education Edition community. The experts there can further assist you with more professional suggestions and advice about your issue.
Thank you for your patience and understanding. If you have any questions, please feel free to reach out.