Until recently, it was trivial to copy text in the chat window in Zoom meetings within the Zoom desktop application: you simply selected the desired text and used the standard keyboard shortcut (Ctrl+C in Windows) to copy the text.
Suddenly, this basic essential functionality is not working (using Zoom meeting desktop client v5.6.5 in Windows 7). The Zoom chat window still has a "Select All" function in the context menu, but there is no "Copy" function, and pressing Ctrl+C has no effect.
How can one now copy the selected text from the chat window in a Zoom meeting chat?