I've encountered this before..but not like this. Containers either replicate themselves, or cannot be deleted. I'll delete. Save changes. Then refresh...and they're back.
Here's an example: https://thehumanfirstsociety.org/contact/
Pretty simple page, but why would this be happening?
I want to have some text to the left of large image. I have tried two containers side by side with 0 padding and margins, one containing text, the other an image, but that gives me a very large area of space between the columns. Then I put two containers within an outer container, this also gave me a very large space between the containers. How can I reduce this space? I have adjusted margins and padding of the items and this did not make any difference.