According to this article Ecuador considers inviting a third-party mediator to tackle its long-standing disagreement with Britain over the fate of Julian Assange:
The foreign minister said the situation was "unsustainable".
The Wikileaks founder has been confined to the Ecuadorean embassy in London since 2012, claiming political asylum.
Julian Assange's stay in Ecuador's embassy was long and quite complicated, involving several countries: Sweden, US and UK (source).
Clearly this situation created some unpleasant discussions between Ecuador and other countries involved, by not allowing Julian Assange to face the charges.
Question: Why did Ecuador protect Julian Assange for such a long time?