Original Post — Direct link
I am a Chinese player, and I received such a warning when I logged into the game today

And when I used "R6 Tracker" to check my ranking, I found that my record was all cleared, and restarting the game did not restore my ranking. In addition, when I played a ranked match, my game number was displayed as One, the score is calculated again.
19 days ago - UBI-Froggard - Direct link

Can you translate what the message in the first screenshot says please?
19 days ago - UBI-Froggard - Direct link
Thanks for the translation. A rank reset can occur when too many high MMR rollbacks are being issued. This is working as intended. Please follow this link for more info.
17 days ago - UBI-Froggard - Direct link
I'm afraid we can't undo this, as it's all managed by in game systems that we can't override and have no ability to adjust players ranks manually. I apologise for any disappointment or frustration caused from this.

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Links in this thread

Dev Blog: MMR Roll Back
With the launch of Y4S1, we will be activating the Match Making and Rating (MMR) Roll Back feature. When a cheater is banned, this feature will roll back MMR gains and losses for all players from matches that the banned cheater participated in for that Sea