If you have been playing No Man’s Sky and found that when you went back to earlier planets, you may have seen the No Man’s Sky lost discoveries bug.
What appears to happen is that as you explore and discover new planets and species, the discoveries you made previously get wiped and reset. This obviously isn’t good if you spend time cataloguing all of your findings.
I re-downloaded and reloaded the game for about two hours. I don’t know what happened but all the discoveries re-appeared on my starting planet.It seems a little bugged where as you get further and further away from your starting point you can’t see your old discoveries even when you find your way back. It’s like the server lags behind big time and takes a while to find the old information.
This suggests that while your discoveries aren’t always shown, they are being stored and could be recoverable when Hello Games address the problem.
No Man’s Sky is available for PC and PlayStation 4.