i have the same wallet problem . once update do 1.6  all incoming transaction are stop. now i can transfer funds to graviex , but no incoming coins transaction.

i have 24h with no incoming coin .
i make the old wallet  an rar archive . i copy /paste from old wallet to new wallet the files : wallet. dat , walet.conf , masternode.conf .
i syncronice all , but still waiting incoming transaction
all ok : wallet - masternode , but no incoming  and all the coin gone ...

help ?