Another "bug" with setting control value using Property node

I am using Property Nodes to set some controls, mainly to get the "data flow" feature using the error line:  as most of my VIs have the error line running through them, I can ensure the control value changes after MyVI by simply wiring the ErrorOut from MyVI into the ErrorIn of the control's property node.

However, I found a "feature" that (so far) I have not seen documented -- if there is an "error" on the Error line, the value will not update!  This came as a complete surprise to me, as there is no "intuitive" (or "obvious") reason for me to expect that an error would prevent a control from updating or allowing any of its properties to change.

I am aware of the arguments that "updating controls using property nodes" is "bad" (because it can be slow) -- however, having it inexplicably "not work" is (to my way of thinking) an even more important reason to avoid this practice!  Time to dive into my VIs ...

Bob Schor

P.S. -- I'm attaching a picture of a very simple VI that demonstrates this. Note I've only tested this with a Boolean control. Also, I should mention I'm running Version 8.5.


Prop Node VI1.png:
http://forums.ni.com/attachments/ni/170/327708/1/Prop Node VI1.png
.