No linked payment for transfers

Fails to Link split bill payments. I cannot tell which repayments are associated with transactions.
Details to reproduce:

  1. Send payment to AMEX
  2. Split transaction from step 1 by “Split this bill” with a friend
  3. Friend pays back via their Monzo
  4. The transaction from step 1 is missing the “split this bill” option and there is no “linked payments section”. Transaction from step 3 is missing the linked payments section also.
    Device: iPhone 12
    App Version: