Typically a .NET Framework software error. If that is the case you can download the latest version for free from Microsoft. Make sure you reboot after installation.

Details box is taking more time to load. You can tell if the page has fully loaded or not, typically, by watching the browser page spinner. It got worse when the edit command reappeared on the menu last week. Fix one thing, break another.

customer support can likely walk you through the .netframe fix @dascpa is talking about.