Single Finger Force Click Didn't work as expected

Using BTT trackpad remap, I remapped Single Finger Force Click to run an applescript,
but I found Single Finger Force Click only trigger when I perform a force click with a left click situmatiously.

If I left click down and didn't release,then perform forceclick with a little more pressure , ths did not trigger any more. (I hope this triggers)

Is there any way to change this behaviour?