FocusLock vs. Selected Track ? oneButton Script

hi there, i have a problem with my script. I only want to work with FocusLock but i could not find out how to "deselect" the track, where you are clicking.
This causes trouble to my script, because if you start a recording with this script on a focusLocked and (!) selected track, it records about 150ms or so.

If you record on a focusLocked track while the selected track is another one, there is no problem at all...
if i delete the sustain-function it works...

what is my error?

Code:

---

!name FocusRecord
!quantize
!multiclick 300
!sustain 500

for *
        if focusLock
                if mode = reset
                        record
                        message RECORD
                        elseif mode = record
                        overdub
                        message OVERDUB
                        elseif mode = play
                        overdub
                        message OVERDUB
                        elseif mode = overdub
                        play
                        message PLAY
                endif
               
        endif

next

Label sustain
        if sustainCount = 1
        for *
                if focusLock
                        reset
                        message RESET
                endif
        next
        endif

Label click
if clickCount = 1
        for *
                if focusLock
                        undo
                        message UNDO
                endif
        next
        endif

---

FocusLock vs. Selected Track ? oneButton Script