I'm not sure if this is a bug or is the way it is designed so I'm going with the latter. I am editing a lot of scanned family photos and so enter a lot of titles, descriptions, captions and keywords for my photos. After I select a text field, let's say "Title", by left-clicking in the text field, I take my hand off the mouse and begin typing. I have found that if I have left my mouse cursor over one of the Tools on the right side of the screen, the tool that the cursor was on will become active. When that happens the text cursor is removed from the text box and whatever keyboard shortcuts get invoked by the text I am typing begin modifying or deleting the image I am working on. I try to swipe my mouse to the left after selecting a text field but all too often I forget and my mouse has found its way to the right side of the screen. I wish the cursor behavior for the tools would change to not take the cursor from a text field until a tool is clicked on. I see that is is good to have the cursor activate the tool's information when the mouse cursor is hovering over the tool but let the text field remain active if selected.
I am using Lightroom version 4.2 (this feature has worked this way for at least the past year) on a Windows 10 Home version 20H2, 64 bit.
Thank you so much for your time. You folks who answer the questions, Rikk, Victoria, John, Johan and the rest of you are doing a fantastic job! Thanks for working so hard to make your products better and to help your users.