Matrix Props Exception using $

So i have a button matrix and want to change the osc address like this in the props:

{
  "address": "/lx/mixer/chanel/1/pattern/#{$}/enable"
}

Now my browsers console says:

widget.js:1108 matrix_1/0.address #{} error at line 2: ReferenceError: $ is not defined
errorProp	@	widget.js:1108
resolveProp	@	widget.js:869
createPropsCache	@	widget.js:448
checkLinkedProps	@	widget.js:416
updateProps	@	widget.js:979
onLinkedPropsChanged	@	widget.js:536
(anonymous)	@	widget.js:467
trigger	@	event-emitter.js:36
updateProps	@	widget.js:969
updateWidget	@	data-workers.js:26
(anonymous)	@	index.js:53
trigger	@	event-emitter.js:36
onChange	@	ui-inspector.js:318

and

ReferenceError: $ is not defined
    at String.eval (eval at compile (vm.js:120:28), <anonymous>:3:14)
    at Object.$ (vm.js:145:33)
    at widget.js:860:42
    at balancedReplace (utils.js:133:41)
    at Button.resolveProp (widget.js:856:29)
    at Button.createPropsCache (widget.js:448:44)
    at Button.checkLinkedProps (widget.js:416:18)
    at Button.updateProps (widget.js:979:18)
    at Button.onLinkedPropsChanged (widget.js:536:18)
    at Array.<anonymous> (widget.js:467:22)

a bunch of times.

Am i using that wrong? Is that broken? Thanks a bunch.

Could you post the full content of the matrix' props property ? Provided snippet works fine here.

Good to know that that is how it's supposed to work and it wasn't me.
I closed the app and restarted it and now it's working for me as well. I somehow must have managed to corrupt the internal state before. Maybe by trying to use #{$} in other fields than props.

Thanks for your help.