Last night, I sent 4 explorers/scouts out to find treasure. When I logged in today there were four mail notices about the treasure found. Because I had not connected to the chat server, I refreshed the internet page and when CEO had fully loaded I got an another notice of my 4 explorers finding loot again giving me a total of 8 loots in my mailbox.
Thinking it was a minor glitch that would correct itself, I accepted all 8 treasures. All 8 went into my star menu and all 8 then went into my mayor's house. Giving me a total of 400 marble, 700 hardwood planks, & 80 granite gained instead of 200 marble, 350 hardwood planks and 40 granite.
For once it's a bug that's worked in my favor, but it's still a bug and it needs to be reported.