Pinch-to-Zoom not working correctly on iPad

Bought an iPad Pro 12" and happily installed Scrivener but something is wonky with pinch-to-zoom.

On my iPhone it works great: zoom in, zoom out—no problem! No matter how large or small the type, the text always fills the screen.

But on my new iPad, when I’m zooming out (making the text smaller), as soon as I get under 2.0x, huge margins appear left and right and get bigger and bigger until the column of text is one-inch wide. Ack! How do I fix this?

In Settings, locate Scrivener, Editor and choose Text width

Yes, that’s it! Once set to Full, that fixes it. Thanks!