Thank you for your reply.
I do not see direct control over font color.  Maybe it's just white on white.
Not in draft mode.  I toggled.  No change.
Also, the layer I'm editing is visible, and default settings for lines show up in the layer.
This pic shows the cursor and the insertion at different locations.  I have not clicked on the canvas after clicking OK.
I'm using Windows 10, LibreCAD version 2.2.0.  Your description of the insertion point makes sense. I can deal with deleting one if necessary.  The real issue is invisible text.