Level: -9/Materials
Hacked a terminal to show me the branch exits, and when I reached one for Storage, I found it was placed under a cache of items.
I stood where the exit is shown, and pressed (shift + ,) which gave the message "No level access here".
I picked up the item that was covering the exit, and it looked like a grayed out exit.
The seed is: PulseSuspensionHammer
Oh wow that's interesting, thanks. This is a result of the new side caches recently added to Materials, I guess it's possible for them to be placed on exit locations but they don't actually check for it! Will be fixed for Beta 6.