A certain label's visibility can't be set

I’m making an ‘instructions’ screen for an app, and I wanted to make it like this:

How to play

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I have four such rows. All of them are working fine except for one: I’m unable to set the visibility of a label to either true or false.

My code:
image

I know that the code is executing, though, because I put a set label’s text block inside the Image2 click event, and the text appeared in the label I chose.

This is odd, since the same code(with different labels) is working with all the other images. Why is this happening? Or rather, why is this not happening?

If you are using an absolute position label then the visible will not work on Android.

No, this is a normal label, no advanced properties.

And also, this is not visible during web preview as well.

Will it work if you just add a new label to the screen and use it instead of label13?

Let me try that.

Yeah, it does! Thank you so much!

By the way, you can shorten the code into one single line

When image2 click
      Set label13's visible to [not] label13's visible

Ohhhh, I never knew that the not block created the opposite of a value. That’s really cool! I always used if else statements, but this will be great and quick!

That could not only be used for visibility; it could also be used for even more areas in Thunkable. I like that idea. Thanks again, @muneer!