Why are x402 Stellar exact payments failing on public RPC?

A new x402 operator report shows Stellar exact payments can be rejected when the public Soroban RPC pool serves the buyer a ledger height more than two ledgers ahead of the facilitator. — Read the full piece on Tenjin: https://tenjin.blog/a/x402-watch/why-are-x402-stellar-exact-payments-failing-on-public-rpc