Fix of the issue is now available in InDesign’s latest November’17 update.
Please upgrade to the latest version InDesign CC 13.0.1 for the fix.
If you are unable to see the update, go to Creative Cloud application and click on the context menu on the top right and click on Check for App Updates.
InDesign TeamClare commented
Hey, I had the same issue which I have managed to fix. Try double-clicking on the eyedropper tool and checking the boxes that say "Character Settings" and "Paragraph Settings"