I've been using InDesign on the Mac for years and never experienced this before.
In a document that I've worked in before, suddenly none of the Paragraph styles work anymore. If you click on any of them, they all change the text into 9-pt Calibri bold, left justified, with a yellow stroke. When I double-click on the styles to look at their settings, they're all correct, but none of them can be applied anymore. (Or rather: applying any of them results in this strange style that I neither created nor imported, and whose existence doesn't seem to be recognized.)
I tried manually changing the text (resetting the font, size, leading, removing the stroke, etc). That only lasts until a style is clicked.
I tried deleting a style and recreating it from scratch, and then applying it. Same thing: its paragraph style options box shows that it's correct, and yet it turns the font into that 9pt Calibri.
I've also noticed that when I create a text frame, the default font is now something new that I've never selected before (not Calibri - but a font that I purchased some months ago and have used without trouble until now.)
Does anybody have any idea what could cause all my styles to suddenly go haywire like this? I've checked other documents, and they appear to be fine. It's just this one.
Likely you inadvertently turned on a character style full time. Looking at Character Styles panel, with nothing selected, it should be sitting on None.
It's also possible somthing is damaged someplace. Is this restricted to a single file, or does it happen in all files, just old files, or just new files?
Ha, that did the trick, thanks. I have no idea how that happened, since I never use Character Styles at all.
Now, I just need to figure out how all my CMYK Swatches got changed to RGB ! This file is really bizarrely messed up, and I have no idea how or why.
No other files appear to be affected, so I may end up redoing everything from scratch in a new file, just in case something's corrupted.