Unexpected Downgrade: Project automatically downgraded from Tier 2 to Tier 1

Hi, i do not know why, my ai studio from tier2 downgrade to tier1, then met 429 error, pls help!

Hi @bo_yan - I experienced the exact same bug. I reported it here. It would help if everyone could upvote the issue and leave comments in Google’s Issue Tracker:

https://issuetracker.google.com/issues/516559263

Hello @bo_yan @Itan_Bar-Peled,
Can you DM me with your project number? To send a direct message, click on my profile picture or name, and then select the Message button.

gen-lang-client-08104915.. and gen-lang-client-06267463.., the first project from tier2 downgrade to tier1, the second project downgrade from tier3 to tier1