I have submitted error reports via email but posting here as well. Since 12.3 update, an error occurred when trying to access any container, even characters bag, can't click items but if you do you can't place it back in your bag, you can only drop it and it vanishes. Opening containers in poi, base, hv, sv, cv and player causes an error. I have run the integrity check and no errors, restarted the game, it still persists. So I click the email log option and quit. The game has become unplayable, the connection problems was bad enough on servers. Also, I need connect to a server twice, the first time it just hangs for several minutes returning to the menu, clicking the same server connects. I have tried several servers with version 12.3 and all the same problem.
Can you please attach the client log where the error appears ? The client log folder can be found here: Right click on Empyrion in your steam library > Properties > Local files > Browse local files > Logs compress the log with the windows built in compression option or use tools such as winzip or 7zip then attach them to your report by dragging them into the reply box or using the upload a file option.