Chart digital display bug

Hi,
I am using chart with stacked plots and digital display for each of those stacked plots. There seems to be some update bug since if I move the display on the chart weird things start happening. The chart stops to update some plots and also artifacts appear. When I hide the digital display all seems to work as expected. What is the problem? Is it a bug? Is there some work around or do I have to code my own digital display?
I made a short video to show the problem.
LV 2011, Win7

After I wrote my own implementation of the digital displays I realized that this problem appears also if I use separate controls and place them on the graph. Really annoying. The workaround I found, whether using the native charts digital display or your own version, is to force the graph to refresh. This surprisingly cannot be achieved by the method chart.refresh which doesn't help but by toggling for example Legend.ScrolBarVisible. If you toggle this property after writing data into the graph this annoying bug disappears. Other usable properies for this are: chart.visible, chart.updatemode, chart.plot.visible, chart.plot.color
LV 2010
LV 2011, Win7
Attachments:
DigitalDisplay_Workaround.bug.vi ‏16 KB

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Adrien wrote:
: How do I get an XY Chart to display properly while using embedded
: loops to periodically read multiple channels of similar data? (multi-Y
: versus specified time) The plot just becomes a point or a single plot
: of all values taken at one scanning of all channels. I want multiple
: plots over time updated at the time of scanning.
: I have also stored my data in a daily text file that is tab delimited.
: The text files consists of a row of text column headers, a blan
k row
: and then rows of data. The data rows are mixed data types. The first
: column is a date/time such as Mar 1, 2002 12:01 pm. The remaining
: columns are numeric data. I can't seem to get my data to plot
: properly in an XY chart from memory and am having problems parsing the
: data with mixed data types in the data rows. The format I am using
: works great for viewing the history files in Excel.
: When I plot the data, I either get a single point or a a series of
: points for a single reading of all channels or I get a line connecting
: all data for that single scan reading. What am I doing wrong? At
: this point, I don't care if I read the data from the file to plot it
: or if I can just get Labview to plot correctly as the data is gathered
: without going to the history file.
: As noted in the summary question, I have embedded loops in my
: applicaiton. I have a while-loop that determines the scan rate and
: keeps the program running until it is turned off. Inside of
that, I
: have a for-loop (in a subVI) which scans all my data channels.
: Thanks for your help.

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