There was an issue with this trade I only realized once I set up the draft. I (Santo Domingo) had already traded my 2106 2nd round pick to Buenos Aires but I didn't remember this and wasn't reminded by a missing pick in the software because this was an interleague draft pick trade.
The trade has been modified. Instead of Santo Domingo's 2nd round pick and 5th round pick in 2106, London will receive Santo Domingo's 2nd round pick in 2107 and 4th round pick in 2106 (to make up for the delay in receiving the 2nd round pick).