Lunar Revel Token counting bug

I finished the last mission, got my envelope and the emote or whatever, checked my Tokens, and saw to my enormous satisfaction that I had an even 500. I closed out the client, went and had some dinner, came back to do some math using a spreadsheet to track my token progress, and logged back in to try to grind out more wins.

I clicked the store, (because I really needed to see the price on 160 tokens again), and then the loot tab.

I now have 490 tokens.

w.t.f.