Everytime I LAND, The Runway Gets SMALLER in PTFS !

So basically, I can only fly airliners, any of my choice, but everytime I land successfully, the runway gets cut in 2, in Roblox Pilot training flight simulator :D Background music used : 1 : Athletic theme from Super mario world 2 2 : Flower Garden from the same game 3 : Wii Shop Music from, well, the wii shop lol 4 : Oveworld still from SMW2 5 : Tennis at the end of the game in Wii sport idk the real title #roblox #ptfs #pilottrainingflightsimulator #airliners