How to keep text boxes from merging together in Edit Mode

When in Edit mode, I am setting up a form and using text boxes.  All seems well.  After you save the form and go back into it, some of the textboxes have merged together.  Now, you can't move just one of them, they are all lumped together.

So, then, you start over again and make two separate text boxes, but then they end up merging together into one text box, again, after you close the form and come back to it, later.

Is there any way to turn off this merging thing, so that you don't have to keep separating the text boxes, so that you can manipulate them?

It seems to happen when text boxes are close to each other.

I would appreciate any help with this.

By the way, this was happening when I was using Acrobat XI Pro.  Now we are using Acrobat DC, and it still happens.

Thank you.