I'm having the same problem. Thought you'd like to know you're not alone. In my case I'm taking pretty random kind of parallel lines - elevation lines - and placing text on them so I don't really have the option of moving the line, placing text and moving the line back. Can be done but not easily. Move the green triangle and everything goes to the left including the orange. Run the green to the right to the end and then reverse the text usually does the trick. Sometimes that puts the text on the wrong side of the line and then I have to start over (in my case undo works) and place the text on the other side of the line somewhere and do it all again. Crazy slow but it gets me there. I adjust the triangles prior to typing any text so the dark triangles are not present with reversed text.
Just noticed that my mouse is buggy - probably one of the buttons is not closing correctly - so that may be my problem. Perhaps your mouse has issues?
Just tried it in AD 1.7.1.404 and there is not problem - so the new version introduced the bug.