Can't select a value inside a control in FP

[R1C5]

Hi everyone!

I have this problem: My 'main VI' run and communicates with the instrument, then I click the button to call another VI asynchronously (settings_sync) where I can change the settings while the 'main VI' is running... it calls perfectly, so changing the control values in the Front Panel though the Increment/Decrement arrows works fine, but I can't select the value inside the control to change it through keyboard. When I try it deselects in the instant the main vi updates. How to get it working fine?

[R1C5]

Well, I think I found the problem: as a test, I took out the Property Node portion checking if the FP from settings_sync.vi was open (this portion is in the last VI inside the main VI's while loop, sorry for don't attach it before). Also, took out the Case Structure, leaving only the Standard case content. Now I can select and edit the value as I wanted =].

Is a pity that I lost the part checking that FP, I would like the execute that code only if it was open.

Edit: I used a global variable to send the status of the FP. Works pretty well. =].