Zbrush Script Hotkeys Not working

Hi all,

I am trying to write a simple script that changes brush sizes, however, when I assign hotkeys they only seem to work once. I have also tried to manually assign the hotkeys and they still do not seem to work.

Is this a bug, I found an old thread, but it did not go into much detail.

My code is as below, any help appreciated.

[IButton,Size 25,"Brush Size 25",
[ISet,Draw:Draw Size,25]
[IButton,Size 50,"Brush Size 50",
[ISet,Draw:Draw Size,50]
]/*End of ZScript*/