seed phrase of 24 words becomes one of 12

this is hard to explain but i will try :slight_smile:

I arranged my 24-word seed phrase in 4 lines of 6 words

I put the seed phrase in the metamask (it allows up to 24 words) and when I get to word number 12 I realize that I can log in with that seed phrase (I clarify that I had one of 24)

how can this be possibleā€¦ someone explain to me?

check if I had funds and nothing xd

do NOT put your Trezor seed into MM, you are compromising it.

Use MM as it is intended, pair it with Trezor as per manual: Apps:MetaMask - Trezor Wiki

And MM recognizes the seed because also 12 word seed is possible, but it is not correct one.

Every combination of 12 words has a 1 in 8 chance of being a valid seed. This means that the first 12 words of your 24-word seed have a 1 in 8 chance, also your last 12 words, also any middle 12 words.

Note that itā€™s a seed, not your seed. You can spend all day generating empty 12-word seed wallets.