First close Bitcoin Core entirely.
click "Win + R" buttons.
Type "cmd" then hit Enter.
Type: "cd .." hit Enter.
Type: "cd .." hit Enter. (You should see that C:\> on the console)
Then
Type: "cd Pr" and hit Tab, it'll type "Program Files". hit Enter.
Type: "cd Bi" and hit Tab, it'll type "Bitcoin". hit Enter.
Now type: "bi" and git Tab, it'll type "bitcoin-qt.exe"
Now add this: -zapwallettxes after the bitcoin-qt.exe.
it'll look like this: "bitcoin-qt.exe -zapwallettxes" hit Enter.
Wait for rescan. You're good to go. All unconfirmed & wrong txes will be deleted. If you have that balance, it'll be added to your wallet.
I wouldnt do that, you might lose information if you remove the TX from the wallet.
What does:
getrawtransaction a9776e246ef655b66cc493f148e15cf71bc79e21caec687c00b511bfe6d803b7
and
getrawtransaction 40498d4c605170d1e970051cae159341d029b196cc4d1d7215eafba8826ee328
return if you enter it in the console (Help -> Debug Window -> Console)?
