This is by design in Spectrum Lab.
The automatic capture command saves the main Spectrum Lab window (waterfall/spectrum display). It does not automatically save the separate Watch/Plot window.
To save the Plot (Watch) window, you must use the separate command:
plot.capture(“filename.jpg”)
or, for saving a single immediate file, use File → Capture plot screen as file from within the Plot window itself.
IMPORTANT: The Plot window must actually be visible on screen, otherwise plot.capture fails.
If your periodic action currently contains something like:
capture
then only the main window will be saved.
Instead, use something like:
capture
plot.capture(“plot”+str(“YMMDD_hhmm”,now)+”.jpg”)
(or combine both commands in the periodic action).