once I type in that seed without BIP 39 check - I get one wallet with one addresses
once I type in the same seed with BIP 39 check & this derivation path only m/44'/0'/0' - I get a different wallet with diff. addresses
Here you see on the picture:
on the left with BIP39 on the right without BIP39
https://i.imgur.com/SCKriLt.jpgI hosted your image in a differnet server to be able to post here
This is very weird: Creating a new wallet using the same Seed but checking BIP39 in one and in the other without checking. This is not a common practice and you shouldn't do it. This is bad for your security.
iancoleman.io is a good website for it but it does not work with Electrum wallets.
So, let's troubleshoot from here, OK?!
Wallets that you create with electrum are not BIP39. You are able to import wallets that you created using BIP39 in electrum, but you can't create one using electrum.
This is important. If you generated the seed inside electrum, you shouldn't have to care about derivation paths.
Unless you recovered a non bip39 seed into electrum and checked that wallet as BIP39. Then sent funds to it. Looks like this is what you did?
I have just created an Electrum wallet on Tails that's all.
Then in Spt. 2019 people suggested trying out different derivation paths. You by the way suggested it too! - you may check it in my last topic.