Multiple Planar reflection problem

Hi Everyone,
I’d like to ask you, how can I get multiple planar reflections to work at the same time.
I looked at the similar topic, but it doesn’t have any solution:

It’s about the interior of subway train, and only one side’s windows are reflected that way. Either one side or the other, but doesn’t work with both sides to be reflected.
I hope you can help me! Thanks a lot! :slight_smile:

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