Okay! I wish there was a central location that this info was on, but had a look at Satisfactory reddit and found this gem:
Known Issues + some solutions
Just posting a few of the major known bugs and some (temporary) solutions. We were hoping to have a patch out by now, but we need to ensure that the patch is safe and so things are taking a little longer than expected. Apologies for that but I can assure you we see the reports and we're listening! As annoying as the bugs are for you, they are - imo - WAY more annoying for us as this is a passion project of ours and it genuinely hurts to see you all experiencing these bugs.
Really sorry. We're doing our best! :3
Onto the issues!
Issue: Can’t play/join multiplayer because login on start-up fails. (A good
indicator is nothing showing in the News Feed)
Fix: Disable Send Game Data in the Options Menu. Doesn't seem to work for
everyone, but it does help for a lot of folks. We are currently testing
a proper solution for this.
Issue: Can’t save the game.
Fix: For example on Windows Defender, you can allow the Satisfactory executable
through controlled folder access. Make sure to add the right .exe, the folder
path could look like this:
C:\Program Files\Epic Games\SatisfactoryEarlyAccess\FactoryGame\Binaries\Win64\FactoryGame-Win64-Shipping.exe
We are currently testing a proper solution for this.
Information on how to allow an app through controlled folder access:
Issue: Crashes in Multiplayer referencing the Replication Graph.
We don’t have a workaround, but are currently testing a solution for this.
Issue: Can't go into windowed mode/full screen and shows a black screen.
Fix: In your epic launcher, open settings (found in the bottom left of the launcher).
Scroll to the bottom, you will see Satisfactory Early Access. Click it to expand it.
Click "Additional Command Line Arguments". Add "-WINDOWED" (without quotes).
Run the game. This will force windowed mode.
So give the "Don't send data to devs" option a try. It worked for me. Also, I hope they find a fix soon. I actually want to send my data to help improve the game!