In 4.19, there is a new bug:
I have a hotkey set: CTRL+ALT+ W (only right side of keyboard)
The shortcut worked as it should in 4.18.
In 4.19, it only works if i press CTRL as first key. If i press ALT(Gr) key first and then CTRL, it doesn't work.
FastKeys 4.19 Bug
This is not a bug. The behavior was slightly changed in the AutoHotkey engine update from 1.1.24 to 1.1.30.