subvi front panel indicator will not show first time

[guangdew1]

I have a subvi in my program which is called multiple times, when it's called, it will open its front panel. The text message is sent from main vi. My problem is, if the LabVIEW is a fresh start, this text indicator will not show. It will show whatever send to it afterwards, even after program stops and start again. If I close the program then open again, it will happen again. Any one has explanation? Thanks.

[Dennis_Knutson]

Impossible to say without seeing your code. Are you using local variables, a shift register?

[guangdew1]

Hi Denis,

Thanks for the replay. There's no variable involved, just direct wire. The attached are the screenshots. The forum will allow only three attachments, I'll add one more.

[guangdew1]

One more screenshot.

[Dennis_Knutson]

No one can debug an image. If you felt the need to post images, you should use a Snippet (look it up in the help).

[guangdew1]

No one else will have the environment to run the program. 

[guangdew1]

Hi Dennis,

Thanks for the reply. I didn't know snippet before, I attached it.

[Dennis_Knutson]

But now you did  not attach the subVI. Just make it simple and attach the both as VIs.

[guangdew1]

The attached is the subvi, but I didn't attach the dll. Actually, I think later part doesn't matter for the issue. The text is sent to the subvi in the very beginning of the subvi, it should display it. It is direct wire.

Thanks for your help.

[GiulianoFranchetto]

hi

i don't really see the interest of your global variable string. First, you empty it, and then you do a Match Pattern function. Is this variable used somewhere else, and how?