This is the problem, you need to give each slide a duration that is longer than the Transition time.
If you have wait for Keypress to show next Slide then it doesn't matter what the duration is ( but not 0), it will stay on screen until you press the right arrow key.
No need to set it for 10 mins, just leave as the default of 5 secs unless you have any animation that needs a longer time.
Glad you now have it working
Jill