[Solved] Inspector is not highligthing undefined variables

Hello,
I've recently updated from PHPStorm 2020.2 to 2020.3 and just realized the the code inspector is not highlighting undefined variables. Here is a demo:

I've checked my settings and it all seems ok to me:

Is there something I'm missing?

Thank you.
Regards,
Alex

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3 comments

Any chance this file is a part of external libraries?
Please check if disabling Settings | Editor | Reader Mode helps.

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Hello Eugene,
That did the trick. I disabled the 'Reader Mode' and all of the inspection start working. Thank you.

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For a long time I was having this problem; disabling reader mode worked for me. However, I'm not looking at external libraries, but perhaps it's because I have multiple projects "attached" to my project pane, and that the file I'm looking at is not part of the root project but a different attached project. 

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