Does this leaks?

[Diegoit]

Actions
--------Set Group = (Units in (Playable map area))

--------Unit group - Pick every unit in Group and do (Actions)
--------Then: Actions
----------------Set TempLocation = (Position of (Picked unit))
----------------Unit - Create 1 Dummy for RED PLAYER at TempLocation facing 0.00 degrees
----------------Custom script: call RemoveLocation(udg_TempLocation)

--------Custom script: call DestroyGroup(udg_Group)

 

[GIMLI_2]

No

 

[Ricola3D]

It normally does not leak memory.
However since you're using global variables, be carefull that nothing happens to those variables in triggers on event "Unit - Unit enters region". It could cause bugs/leaks