Bip39 length https://www.spreaker.com/podcast/palerioiwk--6670096 Despite the fact that it utilizes BIP32 process you are able to continue to import BIP39 seeds into Electrum wallet. Also aside from BIp32 There is certainly BIP44 Variation which some wallet use for that technology of seeds. This could explain to you vacant balances. This is https://hindibookmark.com/story22536355/bip39-online-generator-new-step-by-step-map-for-bip39-github-https-linktr-ee-bip39