Report it to Adobe. It's another glitch along with: The dotted line selection tool which acts as a cropping tool and doesn't act as a selection tool and has NO use but to mess up a professional who is trying to things done quickly. Adobe has been changing lots of things that does NOT make any sense. YOUR problem reminds me of PSE 10 which would suddenly change brush sizes as we had to reset everything every 10 minutes. In PSE 14, there are a multiple of things that need changes but none of us are holding our breath for PSE15 as Adobe takes their sweet time to do changes in PSE 16 or 17 or 18. Meanwhile, all of us will find an amateur image editor only because someone else finally got it right. Adobe, get it right this time or we professional will leave you soon. That is a fact. Lots of talk is going around about you now.