Bip39 how it works https://www.storeboard.com/myrtierisaliti Even though it uses BIP32 technique you are able to nevertheless import BIP39 seeds into Electrum wallet. Also besides BIp32 There may be BIP44 Model which some wallet use for that era of seeds. This may explain to you vacant balances. This is certainly why https://health-lists.com/story21161024/bip39-wallet-ethos-wallet-recovery-the-single-best-strategy-to-use-for-bip39-recovery-tool-https-linktr-ee-bip39