Between the hours of 20:53 on June 17th and 10:38 on June 18th Japan Standard Time, there was an issue causing network communication failures between the servers for Frontier Mode. This resulted in a bug where player actions were not reflected in the game. We have since resolved this issue and you can now play the game as normal.
We sincerely apologize for any inconvenience this may have caused our customers. We are currently working on fixing the underlying cause of the issue, and plan to do server maintenance to fix the bug.
Exact details regarding the timing of this maintenance will be given when we have finished our internal testing. As an apology for this issue, we will distribute 14 Weapon Transfer Tickets [Save] for Probability Space-Time #51022-27 at 14:00 Japan Standard Time on June 21st.
We sincerely apologize again for any inconvenience this issue may have caused, and we will be closely monitoring the servers until the issue is resolved.
Thank you for your continued support of Project Mikhail.
[Frontier Mode] Server Connection Issues
Source: Steam Community (opens in a new tab)