SX OS user here. I'm having the same issue with version 2.9.5. I have put the IPS patch in my microSD card, I'm using the 90DNS and I have Stealth Mode off.
Still, I get the 2162-0002 error with both Steam and GoG. I guess we can only wait for them to fix it, right? :(
Only thing drive me crazy is all these new horror games nowadays is its so dark, all time. I can't even play them. I understand they trying to create spooky but be creative a little, not just darkness with pop out scare scenes.