Global variable not visualized but with data.
I use a global variable ($$errmsg) to visualize errors in data input while checking.
Strange enough: the data viewer tells me $$errmsg has a value, but it's visualized in browse mode only after I switch to layout and return to browse. The output is hidden if $$errmsg = "" (as $$errmsg is shown within a frame).
I've tried also giving Go to Layout in the script after setting $$errmsg.
TIA for any hint.