Environment hangs up when spawning from different processes

Hello,

I'm trying to run the obstacle tower environment through the large-scale-curiosity project. However, it seems to hangup when it tries to create the environment from its subprocesses. It prints out that the CrashReporter is initalized and the mono config paths, then does nothing for a while and hangs up with the following image:

This is run on a MBP 13'' 2018, without a GPU. Any way to troubleshoot and debug this? I can't really do anything as there aren't really logged anything from inside the environment.