I'm editing PPts that were submitted to us for viewing at our Conference. I changed the Master Slide to what I needed but the existing slides are not conforming to the new formatting even after I reset them. Instead they're taking on the default bullet formatting which is different from both the Master slide and the original slide.

Specifically, in my Master slide, I created a blue arrow bullet similar to the original design, but with different size and spacing. What I get instead is a round black dot bullet. Font is correct (it changes to match the Master) but spacing is not.

And the new bullet I created doesn't show up in the bullet design options so I can't just change the bulleting design by selecting the new style; I'd have to create a new bullet style for every slide!

I've double checked that there aren't additional slide masters under the top slide.

To try and get around the problem, instead of just changing the Master Slide on the original PPt, I creating a new PPt with my desired formatting and then tried copying slides from the original PPt into it, but they do the same thing, i.e. the bullet changes to a black dot instead of the blue arrow of the Master slide.

What could be keeping slides from following the Master???

Your help is greatly appreciated. I need a shortcut. I'm putting in 13-hr days trying to clean up these PPts in time for our Conference.