tried to replace the wallet.dat on a new pc with my backup dat from mac.
everything is synced and unlocked not only for staking. But I dont see my balance.
Any help please?
Do you see your address in the Receive tab? If you don't then there is a problem with where the wallet.dat was placed or you moved it while the wallet was running on the pc.
If your correct address(es) are in the Receive tab then just be patient and your balance should show up when they wallet is synced to the block that you started having a balance. Once fully synced your entire balance should be there.