Nope I dont think it was RC's loco failure.. cos UBL-MAS was also running late by 3 hrs in the mid night and reached YPR at 7.16am (app) - RC/GG all were running late cos of this train.
I took UBL-MAS from YPR to BWT and it was running 6 mins ahead of SBC-MAS ICE but reached MAS 1 hr 5 before ICE :)