Weird problem in healing.

[Whaat]

So i'm making a new move for my char. The idea is:
He makes a shield that covers him while he heals himself. The cover has itr kind: 9 that rebounds balls. The heal has itr kind: 8 that heals.
Everything else goes fine, but.
When i use the attack, the cover/wall appears, and yes, it does rebound balls. But when the healing starts, it never stops, or well, it does stop when you hit the char with another char, and after that the healing moves to the other char D: wierd huh?
The healing itr looks like this:
itr:
kind: 8 x: 25 y: 13 w: 32 h: 34 dvx: 40 injury: 100
itr_end:
With this itr the healing is neverending/buggy that i don't want.
I tried to change the dvx: to 39 or lower, then everything is fine like i want it to be (it's like John's heal_self), but it leaves a shadow to the ground, and i don't want that D:
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Spoilers taken away so none can copy John's healball D:

[Reaper]

dvx: 40 tells the ball to go back to frame 40 when it detecs a character. On frame 40, it's lead back to frame 41. A never ending circuit. Change dvx to 42 and you should be fine. Frame 39 or lower is non-existant, so you only see the shadow.

[mfc]

My opinion is this:
if you touch "a frame which has itrk9" with a char, ball goes to disappearing frames.
Its the nature of itrk9.. See the shield of john.

Also as reaper said; it may be causing becuse of a mis-usage of itrk8 too.

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And oh i forgot to say:

use a hit-a value like 5 in "frames 40 and 41" and "hit-d value 42".

It will help you to control that looping sequence.

Higher hit-a values decrease the loooping time.

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And also for not healing others;
add a new special body to every frame of your char.
And change the areas of your ball which interact with that special body.

[Whaat]

Solved by Reaper's answer, now i feel ashamed for not thinking about that by myself D:
Thanks for both of you.