Problems Creating New topic

Let’s see if it happens here - sometimes when I read an old post, there is a section that shows on one or two lines, and I need to use the arrows to read whole section. I tried to create a new post this morning , and got the same thing. I was able to eliminate it by copying and pasting as plain text, but is there a better way?

ETA And of course it didn’t happen here

Not understanding what you’re referring to…