Reply To: El Capitan issues with inDesign

I would try these things:
1. Rebuild your preferences: https://creativepro.com/rebuilding-indesign-preferences.php
2. Close all panels you do not need (not just minimize them in the dock, but actually close them). Then try closing all the panels, even the ones you think you do need!
3. Make sure your third-party plug-ins and add-ons have been updated properly
4. Do you have the same problem with a brand new document? Or is it only certain documents?
5. Try logging into a new account (like a guest account) on your computer and launch InDesign from there.
6. Try turning off your internet connection (no wifi, no ethernet)