Verifying game files has now enabled me to access the EDZ Obelisk twice. On the first try, it also had to redownload a corrupted file (unsure if related.) This is not a permanent fix though, one time even exiting the obelisk menu and remaining in the vicinity for a bit made the obelisk inaccessible, could be I got lucky. I also haven't repeated this enough for a good dataset, so I can't say it works every time. Consistency aside, it's also very time intensive, considering the fact that the game is 90GB and not everyone has an SSD f.ex, verifying the files can probably take up to 10 minutes per try, but just a last resort tip if you haven't tried this already. If you try it, maybe report back and inform others whether or not it works aye?