Already reported to NI
 
Reported to NI, CAR# 4DO8EDE8
 
An example and the following text were originally posted by "mellberg" on LAVA in 
this thread.
 
 
The text of that post follow;
 
"
Hi,
Using 'Defer Panel Updates' to speed-up the updating of the front panel is sometimes very handy, and when developing GUIs I use it alot.
Recently I saw a very strange behavior, using a chart, which we confirmed to be related to the above mentioned VI-property.
Try out the example below and try switching the 'Defer Panel Updates'-switch a couple of times and you'll be seeing strange graphical issues in that chart!
This bug was found using LV8.2.1, but NI told me it also existed in LV8.5.
//Mellberg 
"
 
Thank you,
 
Ben