[Gameplay] Fiddlestick Ultimate Disappear When Flash Too Fast.

Story: ~ Around 10:10PM 3/9/2016 , I was playing Fiddlestick Support vs Vayne, Velko at bottom lane. When I reached 6, and ready to unlease my ultimate [R] for a turret dive + Flash. After I [R] Ultimate and Flash in, I only see my champion Flashed in without ultimate. Its also on cool down. Enemies were occupied by my teamates: Rammus jungle and Lucian ADC. Vayne used [E] on Rammus and Velko also [E] to knock up him. Nothing was there to stop my ultimate. This is the order of keyboard I clicked: [R] then wait a bit then [F] Flash.

    Simpler Version: Can someone help me test this. Use Fiddlestick Ultimate [R], Wait until it almost done channeling, Flash!

What happened to my game: I Flashed in the middle of enemy turret without Ultimate. Ultimate On Cool Down.

   If the method above cancel your Fiddlestick Ultimate, please submit a reply for me asap. I want to know if During Fiddlestick Ultimate, Flash will cancel his ultimate.