I think this bug happen always with animated bindings, but as nobody reported it yet I’ll provide the specific steps I tried.

Set a binding to animate(‘$b’) the label of an item.

Make a shortcut to change the b variable, value 1-$b (nice trick 😉

When the launcher restarts, or sometimes when it is in background long enough and you open it again (not exactly killed, but not sure the state it become) when clicking the shortcut the first time the change is not animated. Successive clicks does. (I mean, the first click change the label instantly, the second/third/… clicks change the label with animation)

Note: Doesn’t matter which animation. Doesn’t matter if the shortcut simply set the value directly. Doesn’t matter the property.