Live View is Not Showing Changes As I Make Them...

I've just started back using Dreamweaver and for some reason, my Live View is not updating as I make changes.  I have to close the page out and re-open it just to see it.  Not only that, when I am trying to move an item using margins, the items snaps back to where I originally moved it from.  I initially thought I was doing something wrong, but when I closed down the project and opened it up, my changes reflected. This is so frustrating, it has taken over an hour to do something that it would have only taken me a few minutes to do because I can't see the changes.  I am working on a Mac and I am updated to the latest OS (Cataline 10.15.3).  I also checked to make sure the DW software was updated and it is. Any help with this matter would be greatly appreciated!