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Avg player ELO arrow

It's rather UX bug, but everytime I look at reports, AVERAGE PLAYER ELO section always has green arrow pointing up, no matter if I got plus or minus stats for last day. It's not major issue but my OCD told me to report this :D
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From my knowledge, the arrow indicates the change of your rank for that stat, maybe a few teams dropped further than your team so you placed higher overall than previously. Eg.. Your team on 2200 ave elo, mine is on 2203, we are ranked 1 & 2 hypothetically, once the daily updates go through, my ave elo goes down to 2190 and yours drops to 2195. Your team is now higher than mine and your rank increased accordingly.
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Yes, it indicates change. When you got minus stats, then you got red arrow pointing down, if you've increased your stat, there is green arrow pointing up. I made a screenshot to show how it looks like http://imgur.com/a/6bPDa and it'w always green arrow in avg player elo section.
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That would make no sense Wilo because you're almost higher than someone, its 100% a bug
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It makes sense to me anyway, its hard to explain. because i have had many times when a stat has decreased but i had green arrow cause my rank in the stat increased