Hi @sergio,
In case you can’t see the address with your funds in step “Select an account”, you connecting a different wallet to MetaMask. Either you have a different recovery seed in your Trezor or you use a different passphrase.
You can check if you have the correct recovery seed stored in your Trezor, you can find more information on how to do it here:
for Trezor Model One: https://trezor.io/learn/a/test-recovery-seed-on-trezor-model-one
for Trezor Model T: https://trezor.io/learn/a/test-recovery-seed-on-trezor-model-t
In case recovery seed in your device matches your recovery seed backup, the only way how to access a different wallet (with different addresses) is with a different passphrase.
To learn more about passphrase I can recommend watching video in this thread: Using passphrase in Trezor Suite, MetaMask and other apps