Apparently this is where the data argument to (scrShowScreen screenGlobal screen [pane] [data]) is stored, but it can only be used in <OnPaneInit> and <Actions>, not <OnGlobalPaneInit>.

relanat 24 Aug 2018:

For info, had this happen in 1.8b2 (or possibly 1.8b1, recently anyway).

relanat 29 Mar 2019:

I believe this is fixed. gData is available both within the screen and in the next screen. Could someone double check please.

george moromisato 5 Apr 2020:

I can confirm that this is fixed in the 1.9 stream (possibly 1.8 also, but I'm not sure).