World becomes unresponsive, causes RAM usage to spike to 100%, and can crash in upcoming content release on 1.18.30

Partner Rank: 1 (Critical)

Partner Team Reporting: Oreville Studios

Verification builds: 1.18.30.04_rc2

Summary:

In 1.18.30, an upcoming planned release we have developed frequently experiences massive server-side lag, causes RAM usage to spike to 100%, and becomes unplayable in 1.18.30. These issues did not exist in 1.18.12.

Impact:

This impacts content in development. In our testing, everyone on our team has experienced this issue at least once since the launch of 1.18.30. If the server stops responding, the game becomes unplayable and can persist even after restarting the map or game.

Repro Steps:

Steps to reproduce the issue on our content were DMed to Greg Walls.

Observed Results:

The game is becomes unresponsive, RAM usage spikes, and overall becomes unplayable.

Expected Results:

The game plays as normal.

Screenshots/Videos attached: DMed to Greg Walls in addition to a world copy.

Regression Builds: 1.18.12