In the vast majority of Overwatch Competitive games, only your current SR will change following a win or a loss - but there are those great days where you actually take your Career High SR up.
This stat shouldn’t go down, and is typically used as a high watermark by players for their Competitive careers, which is why the glitch affecting it can feel so personally insulting.
The glitch seems to be occurring on the post-match screen for players following a Competitive match. Instead of only the current Season High changing, Career Highs are also tanking when they shouldn’t be.
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