No Deposits

Hi I keep sending my geo's out looking for Titanium ore and Saltpeter and Gold but they won't find them on this little island I bought for gems, I have sent them at least ten different times.

http://prntscr.com/eb1cng

My Husband Has a Gold and Saltpeter deposit on his.

http://prntscr.com/eb1eox

Have BB changed it and we only have 1 Gold there now ?

Thank you in advance for any help.

Yes, I saw a few players got deposit there, but not sure why, maybe the deposit changed to another place after an update.

I have noticed which Tit and Salt deposits are 300 units and which ones are 500 units are different for me compared to guild mates, I've also noticed that like marble in S1 of main land and Iron in S5 of main land the 500 unit tit and salt deposits are not always in the same locations.