Split from this thread.
I've the same problem.
2. My OS is MacOS Sierra 10.12.4
3. Office Client versión number 14.7.2 (170228)
4. I've installed the last versión of the OS and I've opened a pwp presentatión from a friend
5. No
6. There isn't a problematic file. This happens with any file and also when I create a new one.