Drivers were instructed to head through the pitlane following a crash involving Jack Doohan and Logan Sargeant exiting the final corner, but the call was reversed 22 seconds later with a second message from race control on the timing screens that said the pitlane was being closed.
But Prema driver Hauger - who had led the race from pole - followed the first instruction and fell down the field to 12th as the rest of the field stayed out. To add insult to injury, the reigning FIA F3 champion was then handed a 10-second stop-and-go penalty and ultimately finished last.
