Complex sentence: Rebollo deliberately overshot the cauldron; though some sources claim it was done for the safety of the spectators, in fact Rebollo's arrow did not light the natural gas rising from the cauldron.
Split into simpler sentences: Rebollo deliberately overshot the cauldron; some sources claim it was done for the safety of the spectators. In fact Rebollo's arrow did not light the natural gas rising from the cauldron.