Once the VI stops the indicators are no longer updated. If you want to provide scrolling while using numeric indicators you have several options. Here's two:
Use a graph instead of a chart. Then you can use cursors. You would need to provide your own buffer for the graph.
Accumulate the data into an internal buffer using either a shift register or a feedback node. You can write this to a front panel table that you can scroll after the VI is done.
