I've opened and saved a file from the previous version. A master page item was set to opacity = 25%. Althought the opacity still says 25, it is solid and blocking out other times. I tried reducing the opacity. nothing. I even set it to 0. - No difference. I restarted indesign and the computer itself. - no difference.
Anyone know what might be causing this? -- it was working fine before, but now.... nothing.