Unfortunately now I will stick to this seed I generated few days ago on BlueWallet app, because I already made cryptosteel backup and generated 15 addresses on Tails OS.
ovcijisir, it was better to save your master public key.
Now, if you need more addresses, you will have to use your seed phrase again. Instead, you could save your master public key and generate any number of addresses you want from that without using your seed phrase.
Any rule has the exceptions. If you are unlucky just move a bit further. Two - three words ahead don't make any difference.
You said "
provide the valid 12 word seed and an example set of 16 consecutive words from the BIP39 word list such that none of those 16 words can satisfy the checksum requirement as the 12th word for the first 11 words of that seed." and I did.
Words number 7 and 38 are out of the 16 consecutive words I mentioned.
I prefer not to continue this off-topic discussion, but if you want an example in which none of the first 16 words of the BIP39 wordlist can't give you a valid seed phrase if they are used as the 12th word, I can provide that too.