Hello DalmatProd!
Again, this seems to be easy to solve too! Just a couple more steps than the earlier method, but we can solve it.
And of course, even the best of us can be befuddled by the smallest of things! :)
Let's just go back up to the point where you have added the text in the slide.
Click on the text box once. (Let's ignore the second default text box in my screenshot that Powerpoint gives us. Let it stay there. I forgot to delete it. My bad!)
Now, again, I have shown each step to follow until getting the arrows, with black circles to show where to click. Hope it helps!



I believe you may have gotten until this. The reversal of the arrows happens with the next 2 steps.


With this step, your arrows should be pointing the right way, with the red one on top and the green one below, which basically shows the direction of the animation.
When you click and drag them, what happens is, PowerPoint tries to show you where you initial text is and where the text will be when the animation begins (position with respect to the green arrow). This is why the "ghost" text appears. As long as you leave
the green one alone, you won't be troubled by any ghosts! :)
So, after you get the arrows, just follow the steps in the earlier answer from the part of seeing the arrows and all should be well!
Again, in case you need any more help, do let us know.