#target indesign when multiple versions of InDesign are open

I have a script that I run from different versions of InDesign (17.0,18.0,19.0). However, when multiple versions of InDesign are open at once and the script is run I get the "no InDesign documents are open" message.

My script code is #target indesign

I know I can target a specific version of Indesign too, but how would I target only the InDesign version from which the script was run from? Thanks.