Hello Hai, and welcome to the E-Learning Heroes community!
I understand that you see a different slide layout in preview mode and edit mode.
You mention your office computer specifically, so are you getting a different result on another computer?
Do you know what version of Storyline you're using?
We are currently on Build 3.61.27106.0 of Storyline 360. If you're interested, please read all the details of our version history.
I would like to look at your project file to investigate what's happening with your permission. You can share it publicly here, or upload it to me privately. I'll delete it when troubleshooting is complete.
