Can't get cells to blink!

[questionguy]

trying to make my schedule blink if there's an issue on the line...however, having a hard time coding that scenario...

My goal is to loop through a list in my "Ranges" sheet which will then loop through my "Aerial View Line 2" sheet and make those cells blink.
This is what i got so far, but can't get it to work. I know I am close tho...

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[xladept]

Try this:

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but the change code is in the aerial sheet while the blink is in the ranges - so how will you see it??