What Is Wrong with This Keybinding?

Okay, here’s one I can’t figure out. The following keybinding works:

[icPlayerPilot.SubTarget]
Keyboard, R

As does this:

[icPlayerPilot.SubTarget]
Keyboard, T, inverse

But the following keybinding is fubar:

[icPlayerPilot.SubTarget]
Keyboard, R
Keyboard, T, inverse

I have tried every conceivable permutation of the tag and ordering of the bindings. In every case the “inverse” blocks the standard, non-inverted key: the “Keyboard, T, inverse” command causes the “R” key to do nothing!

What am I doing wrong? I’ve tried everything I can think of, and nothing works. I’ve even tried this:

[icPlayerPilot.SubTarget]
Keyboard, R

[icPlayerPilot.SubTarget]
Keyboard, T, inverse

but to no avail. I’ve tried making “inverse” all-caps, I’ve tried listing “Keyboard, R” twice (once in front and once behind the inverse T), I’ve tried everything I can think of to get the parser to accept my key bindings, but there’s some detail I must be missing, something I must be doing wrong, because the key just won’t bind.

Can anyone help me?