In 2015 the PPP lose by a slim margin after contesting the election as a single party again the APNU which consists of multi-parties. APNU won 33 seats and PPP won 32 seats, but a recount was not permitted or granted. Though we may not have the facts, we can at least make an educated guess as to why the PPP didn't get justice for a recount.
Note: I recalled the election took almost one week before GECOM announced the declaration. It was thrilling but APNU was 150% sure of victory and wanted the result to be announced.