When using the 'createTrigger command the third arguement 'makeGlobal' is not passed to the command, as only two elements are expected. This produces a script error.
Reference the 'Alternate Syntax' section at https://community.bistudio.com/wiki/createTrigger
(Arma 3 version 1.43 -- not currently availble for selection on the feedback tracker)
1.Create and save a mission in the editor
2.Create a script file with the following contents
"_trg = createTrigger ["EmptyDetector",(getpos player),false];"
3.Run the mission
4.Launch the script
5.Observe the script error notification
(Arma 3 must be launched with -showScriptErrors parameter)
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current stable is 1.42. you can try new trigger syntax by switching to dev verson, it takes only a minute.