After a successful run to the final in Jena at the previous European Tour, Budapest was a reversal of fortunes for Stephen.
Defeat to Nathan Rafferty on day one of the Hungarian Darts Trophy meant an early exit for The Bullet after the Northern Irish youngster pinched a 6-4 win.
There was little to choose between the duo with both men grabbing legs on their own serve for long periods.
However, a crucial Rafferty break of throw in leg ten proved to be the only real difference.
Afterwards, a disappointed Stephen said: “No idea why but I just felt a little drained for some reason. But no excuses, Nathan played well.
“Would have been nice to enjoy another strong Euro run but I just have to take this one on the chin.
“But I’m really happy with my new 18g darts and they’re flying well. I’m confident they will take me to a title.”