The NBC feed mysteriously cut to black during the final 10 laps of Sunday’s Brickyard 400 at Indianapolis Motor Speedway. At the time of the outage, which lasted about 30 seconds, Kyle Larson was making his charge to the front with Brad Keselowski and Ryan Blaney running on low fuel. It’s unclear what caused the screen to cut to black, but it certainly resulted in some angry reactions from NASCAR fans. “What’s crazy is the poor broadcast of this race!” one fan wrote on X. “Started out with nbc news taking over the air then to have the broadcast cutting out.” Those sentiments were echoed by man…