If you press 'Random map' button plus 'Mod Selection' and then you press 'Close' before the 'random' ends, osu will crash.
System.NullReferenceException: Referencia a objeto no establecida como instancia de un objeto.
en #Vh.#Wh.#yK()
en #Vh.#uk.Close()
en #Fh.#Eh.#IH(Object , EventArgs )
en System.EventHandler.Invoke(Object sender, EventArgs e)
en #rl.#sl.#uP()
en #rl.#Pn.#OI(Boolean )
en #rl.#Pn.#VJ(Object , EventArgs )
en System.EventHandler.Invoke(Object sender, EventArgs e)
en #nm.#ym.#t7()
en #jm.#Bm.#r4()
en #Gn.#In.#lr()
en #Tc.#Zc.#Zr()
en #Tc.#Zc.#as(Object , EventArgs )
en #Tc.#3c.#xs()
en #Tc.#id.#Lu(Object , EventArgs )
en System.Windows.Forms.Application.ThreadContext.System.Windows.Forms.UnsafeNativeMethods.IMsoComponent.FDoIdle(Int32 grfidlef)
en System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)
en System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
en System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
en System.Windows.Forms.Application.Run(Form mainForm)
en #Tc.#id.#gs()
en #Tc.#Zc.#gs()
en #Gn.#Fn.#Ujb(String )