Replacing chart data with a 0 lead to a runtime error crash

Added a chart turned it into bars and removed the default values.
Then entered a 0 → crash.

I could reproduce something like this in Linux version of SLS. It seems to be the MicroPython server running in the background handling the realtime display of the edited screens. The exported MicroPython code gives SegFault as well, that is because the ‘Data 2’ series-array is totally empty, and the ‘set_ext_y_array’ that follows it gives the fault. (C export doesn’t give a SegFault, maybe the problem comes from the MicroPython binding) It’s in LVGL part of the system, we’ll check for a solution or a guard against giving the empty array to the backend. Tanks for the feedback.