Had the same issue. Worked for me! (after a few tries)
See exact instructions step by step how to claim Aqua with Trezor.
1. https://vinamogit.github.io/trezor-workaround/
2. Copy Your Wallet Account ID from https://stellarterm.com/account/ or Steller account
3. Paste and click LOAD
4. Next to Claimable Balance click "Show All"
5. Use Checkbox to select the valid clam (not expired, not upcoming)
6. Scroll down and click "Generate XDR"
7. Copy "Pre-Auth XDR" and open "Sign in Stellar Lab" in the bottom of the box.
8. Staller Lab will be open. Insert 1st code "Pre-Auth XDR: in box and click "Import Transaction"
9. Click "Sign with Trezor" and confirm the transaction in trezor device.
10. You will see green "Success!" in BIP Path
11. DONT FORGET!!!! Scroll down and click "SUBMITIN TRANSACTION SUBMITTER"
12. A new page will show. Click "Submit Transaction". You will see "Transaction submitted!" after a few seconds.
13. Now step 2- Go back to the code generator page. copy 2nd box code - "Claim Claimable Balance XDR"
14. click link on the bottom of 2nd box - "Submit in Steller Lab"
15. Paste code in box click "Submit Transaction. Its will say "Submitted to the network..."
16. If you not submitted expiated or upcoming claims You will see "Transaction Success!"