Impress bug wich causes text to appear on the same line

I was working on a presentation but the power went out, I check the presentation (my PC turned off, obviously) and I recovered it successfully (all seemed normal).
Next time I work on my presentation every line of text of one slide was put into one long line, wich went outside of the border of the slide.
Is there any way to fix this?
I am running on iMac 27" 2011 on OSX 10.9.3 Maverics and Libre office


Very difficult to say what is the best way to fix it.

Maybe you can use “recently used” master pages or layouts (ctr+shift+t or sidebar) and re-apply. I also would look at my master page to see if it is correct. If so re-apply. If not correct and re-apply.

If you used consequently the Styles & Formatting (F11 or sidebar) you could check if all your styles are there and try to re-apply. If they have change in the style setting, correct the styles and re-apply.

Everything done by direct formatting, I am afraid, you have to correct everything piece-by-piece

Good luck!