How to keep my mask only in their specific split part of the video?

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As you can see i created two mask one is as subtract the other is set too none. The one blackend out by subtracting it was mask for clip 2 that i split from clip 1. And the other mask that sort of looks like a distorted rectangle is for clip 1. But heres the issue im having both mask in clip 1 and clip 2

How do i delete the black subtract mask or remove it from clip 1? And how do i delete or remove the distorted rectangle mask from clip 2 So that way theres only one mask for both clips?

[Mylenium]

Reveal the masks by hitting the M shortcut and simply delete them. And please do read the online help on such basics.

Mylenium

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I actually tried to look for the online help basics! Can you send me the link?

[P.M.B]

https://helpx.adobe.com/content/dam/help/en/pdf/after_effects_reference.pdf?red=a