is there a dash bug?

[TwoAndAHalfMen]

sometimes when a team member is setting a screen i cant dash(the word dash doesnt appear but there is a screen) till he renews his screen,
i dont understand why, its very very annoying is this a bug or....?im i the only one having this issue?

[Foe]

the screener screened too early, the dasher must be close enough when the screen is set.