I just tested his STMR and it doesn't boosts anything, even after 5 turns...

EDIT: I reported GUMI to Amazon and sent them an inquiry. I have my inquiry number and someone at GUMI is looking into the matter. I also gave my number to Amazon so they can escalate it, if need be.

EDIT2: I got an answer from GUMI and, as I take it, they told me to suck it up. Maybe I'm wrong about taking it this way, but they had 2 weeks to fix the issue. I'll let you be the judge.

Hello,

Thank you for patiently waiting.

I apologize for this inconvenience. Please be advised that we are currently checking this issue. For now, kindly do wait for our update. You can check our in-game announcement for more info: https://s3-us-west-2.amazonaws.com/lapis-news/prod/en/content/20210603MinorIssueCompilation.html

Thank you for understanding.

Nice. The name of the HTML file is "MinorIssue". The "Turtlegate" was a minor issue, the STMR not working is not.