On the Portal activity customization screen, the hover-over text that shows the power required for the next Reward Rank incorrectly shows the power threshold that *was* needed to reach the *current* rank rather than the power needed to reach the *next* rank.
So, for example, between 120 and 160 Power, players are at Reward Rank Copper III, and hovering over the Reward Rank shows "Next rank requires Power 120" despite the player being beyond Power 120. Then, after reaching 160 Power, the Reward Rank advances to Copper IV and the text then says "Next rank requires Power 160." It seems like this text is mistakenly coded to point towards the current rank's threshold instead of the next one.
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This seems not to be the case at Copper V, which does correctly say to reach 200 Power for the next rank.