Did you change any settings related to content loading? It feels like the game tries to load the whole content to RAM at once at the loading...
8GB aren't enough for starting the game. The first loading screen already fills my RAM completely and crashes.
What is the current minimum RAM requirement for the early access? 8GB hasn't been enough for loading the game for a few months already.
I can confirm this, since I have "only" 8GB of RAM, I'm unable to play this release, since the game crashes before the first loading finishes. But...
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