Just verified this issue, and have sent an urgent request for a fix to m0dE. Thank you for the report!

Investigating this now.

Currently, Sandbox is in super duper alpha. m0dE and I have been going through it, testing, as well as making sure things work as well as looking for bugs. We've found quite a few, and we're also in progress of making a proper tutorial for the Sandbox.

There is no set ETA for this feature.

Lab Escape has returned!

The Discord is up and running, and Braains.io is currently online. It's most likely your internet connection.