In GUI wallet is set "Wallet creation height:" above block 1527333 and we are at block ~39000 only, after change to 0, wallet re-scanned and show correct balance.
So there is an "issue". GUI wallet should not set "Wallet creation height:" to that big number.
Maybe is some settings in source for that...
https://i.imgur.com/hJGQrD1.pngCheck the above picture. Setting the block to 0