problems with Save As
I have recently updated to Mojave 10.14.6. I am having numerous difficulties with trying to use the Save As function. When I try to use Save As, the application crashes. So far, I've noticed this happening with Preview, Microsoft Word for Mac 2016, and Adobe Acrobat DC. Right-clicking on the Dock says Application Not Responding and the only way to fix it (for that app) is to Force Quit. What's really interesting is that once it starts in one application, then I can no longer Save As in any application. Every application crashes. At that point, I have to restart the computer and I can again use Save As. For a while. Then, it starts acting up again. I'm tired of all the frequent restarts. I'd appreciate any ideas about what's going on. This never happened prior to updating from High Sierra to Mojave using the same apps as I'm using now.
iMac Line (2012 and Later)