This is because, the redeployment has not yet finished. some exchanges are still working on it, that's why the whole system is not updated. Please stay tuned.

All private wallets which hold Hydro before 28 Feb 2021 were already distributed with the new Hydro token BEP20

Because the new Hydro now is BEP20 token, so please check the asset of your wallet here in : bscscan.com
BEP20 smart contract : 0xf3DBB49999B25c9D6641a9423C7ad84168D00071

IMPORTANT:

- If you want to trade on DEX like Uniswap, Pancake...

Please make sure the new contract should be :
ERC20:  0x946112efab61c3636cbd52de2e1392d7a75a6f01
BEP20: 0xf3DBB49999B25c9D6641a9423C7ad84168D00071


- Please do NOT trade with the old contract :
ERC20 : 0xebbdf302c940c6bfd49c6b165f457fdb324649bc ( it is NOW valid and useless now )