The command plot 1 2 3 4; 1 2 3 4 1
which is obviously wrong causes a Term response of an error message, and a wdhandler message 'error in: plot_gs_paint' with some details. Clicking OK merely repeats the message, and there seems to be no alternative but to switch to the Task Manager and cancel J.
This example is purely to illustrate the behaviour. It seems to be a general problem with plot errors and is very annyoying when developing scripts including many plot calls..
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