iPhoto doesn't start after 10.14.5 update
I'm not sure how much to make of this but all things are good at this point.
I attempted to start iPhoto for the first time after last nights 10.14.5 update. It refused to start. The icon in the taskbar would allow a force quit. When restarting it would present a dialog asking whether to re-open or close open windows.
After struggling and some fruitless web searches, I decided to "try turning it off and back on again". That appeared to do the trick.
I track it to the update because I had iPhotos open a couple of days ago (I am not a really active iPhotos user). Since things are working, I'm posting this so others may have a chance if they see a similar problem.
To be sure, Joel, are you referring to iPhoto or Photos? The former is the old, no longer developed app with a greenish icon while the latter is the current app with multicolored icon that matches the app of the same name on iPhone.