Stage problem[SOLVED]

[Arias]

I have a problem with a stage I'm creating, but I can't figure what's wrong

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a thin magenta line appears JUST when my character jumps... the BG is animated with the sky going down infinitely with a
Y tilespacing of 0, it seems like the line appears where a sprite ends and the other starts

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the other problem are the feathers, they just appear once, and then they don't show anymore in the stage
here's the code

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[BG FEATHERS]
type  = anim
actionno = 11
start = 0, 400
delta = 1, 1
velocity = 1, -1
layerno = 0
tile = 1, 1
tilespacing = 400

[begin action 11]
10, 0, 0, 0, 9,,AS200D256
10, 1, 0, 0, 9,,AS200D256
10, 2, 0, 0, 9,,AS200D256
10, 3, 0, 0, 9,,AS200D256
10, 4, 0, 0, 9,,AS200D256
10, 5, 0, 0, 9,,AS200D256
10, 6, 0, 0, 9,,AS200D256
10, 7, 0, 0, 9,,AS200D256
10, 8, 0, 0, 9,,AS200D256
10, 9, 0, 0, 9,,AS200D256
10, 10, 0, 0, 9,,AS200D256
10, 11, 0, 0, 9,,AS200D256
10, 12, 0, 0, 9,,AS200D256
10, 13, 0, 0, 9,,AS200D256
10, 14, 0, 0, 9,,AS200D256
10, 15, 0, 0, 9,,AS200D256

I JUST HAD THOSE TWO PROBLEMS WHEN I TESTED THE STAGE IN MUGEN 1.0, in winmugen I don't have any problem, anyone has an Idea of what's wrong?[/s]