Okay- Certain things you might need to clarify (or perhaps someone else needs to clarify them for me
):
You have a "BIP39" paper wallet- (What does BIP39 have to do with anything here? You mean you have a seed, or a private key?)
You sucessfully imported the paper wallet- meaning you got the corresponding private key with the adress that holds your balance?
(BIP39 passphrases..?)which resulted in that bip38 paper wallet's address and btc balance reflecting in the new Electrum wallet I had created. That same btc balance reflects at that address on blockchain.com block explorer
I'm not sure what BIP38 has to do with it? You can't import BIP38 private keys into electrum? You mean it simply corresponded with a BIP38 key you have wrote down somewhere/decrypted? I guess that would make sense.
I then tried to send from that imported address but, when I was asked for a password and entered the newly created one, I was told "Invalid password".
That's weird- doesn't electrum only ask for a password when opening the wallet?
Does Electrum have password issues relating to bip38 wallet imports? Would it be possible to just sweep that bip38 address into a bip-38 compatible wallet, even into another new wallet on Electrum? Would I encounter the same password issue?
A decrypted BIP38 private key is just like any “regular” private key- so probably not. It sounds to me like you're having a problem with the electrum software itself - namely the part where you forgot your password (?).
(Sweeping an adress won't give you access to the funds on it. FYI. I also don't think there's such a thing as a BIP38 adress.)
Why don't you just reimport the private key/BIP39 seed (?) into a new electrum wallet, and don't set a password on the wallet?
Is this question a continuation of
https://bitcointalk.org/index.php?topic=5109960.msg49739885#msg49739885If so, please provide more information about what exactly is going wrong, and what you have. (Seed, private key, encrypted private key, "encrypted" seed), otherwise, this is just a guessing game. (for me at least.
)