I've been noticing that this has been a common occurrence for the past several weeks on the 
and 
. For some reason, and this only affects the R62A fleet, they seem to lose power entering Rector St and entering 14 St. This mainly happens when the train set is empty, and usually during a gap in service. At Rector St, the moment a comes into the station, the entire train set loses power, and the last car becomes completely disabled. Same thing with the , once it enters 14 St, the gap fillers will malfunction and the train set will lose power again.
Does anyone know why this has been a common occurrence for the past few weeks now?