The status Reserve does not function

[Wellington]

When you put a unit as Reserve it shall immediately help to defend and adjacent province that is under attack and shall do so more quickly than would be possible if one move them by manual orders. This seems not to work. On several occasions I have tried to use this very handy order, but nothing happens. The Reserve unit does not move. Have anyone else encountered that problem?

And does anyone still do bugfixing?

 

[Pang Bingxun]

When you put a unit as Reserve it shall immediately help to defend and adjacent province that is under attack and shall do so more quickly than would be possible if one move them by manual orders.

Doesn't that much more quickly only apply to "support defence"? I haven't tried reserve myself, i though it is only useful in multiplayer when you have to do things much more quickly then when playing against AI only.