The problem is with the special hatch order that can be set via the Window Ordering menu in the editor: You have set a custom hatch ordering of "0-1-2-1" (as the respective index of the hatch). Somehow the experimental version cannot properly read this and only understands that you want a cycle of length 4 for the hatches. So it looks for a fourth hatch, instead of recognizing the hatch with index 1 as the fourth hatch, resulting in an infinite loop .

So for now the way to deal with this problem is: If you want a hatch cycle of length n, then add hatches, so that there are n of it. To be sure, change as well the hatch odering in the Window Ordering menu to index "0-1-2-...-(n-1)". Then it should load in the experimental version as well.

Attached a version of "Deep Freeze" with the fixes I described above.

PS: I took the liberty to change the thread title to something more descriptive, now that the reason for the bug is known.

If you are doing this, the ordering in Window Ordering should simply be empty.

I tried this, but couldn't manage to delete the last entry in the Window Ordering menu in the editor. So I considered my previous advice the safer option.

Fixed the player issue for the next update.