Image Size Keeps Going Down Grid

Hello!

I am trying to make a Grid layout for mobile, however I am running into this problem, where when ever I add an image to the grid, then have that image take up multiple grid spaces, it all of the sudden gets super small.

As you can see by the Cartoons button, the first image where the button is large is how it is supposed to be, then after a few seconds it snaps down to a different size. Now the Column Start/Stop and the Row Start/Stop are correctly entered in the styles panel.

Any help is appreciated! Thank you.

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