This is a corner a case.
If a pending tx is accelerated outside of Frame, Frame won't reflect that the transaction has been dropped and replaced.
To reproduce:
  1. Make an ETH send tx. Deliberately set a low base fee
  2. Tx will pend
  3. Accelerate (submit a tx with same nonce) with a different wallet (eg metamask)
  4. The replacing tx will complete. Previous tx is dropped.
  5. Tx made at step 1 in Frame will still be displayed as pending