I change the password from my phone app. But when i try to access the wallet from desktop app with the new password doesn't work.
Now i can access the wallet through desktop app with the old password and from the phone app with de new password. WTF?!
Is something wrong with this wallet. It's smell like a scam, be carefull.
Maybe because it has a different IP and system. Of course it will not be changed automatically on your other devices. Its possible to have a different password on different device/laptop even though your account is only the same.
It seems like that your seed or privkey is exposed and you got hacked is more likely than it was on Binance DEX or Atomic Wallet fault. No one can access your wallet unless they got your seed or privkey somehow.
Thats the only reason. OP does not share any wallet address that we can check so I cant know for sure or maybe just a glitch on the app thats why its gone. Or related to internal error on Binance wallet.