I just deleted preferences and that didn't work. Any other thoughts?
Need to know ID Version and operating system.
CC 2017 on a mac
Did you try going into Preferences and turning off Advanced Type > Type Contextual Controls?
Did you try turning off GPU acceleration?
Did you try exporting to IDML; reopen IDML file: save as INDD fresh document?
I suggest you update to latest InDesign CC 2017.1 if you are on CC 2017.0
If you are already on the latest InDesign version, then the following may help.
If you have a Mac running OS 10.12.4, with a compatible Intel GPU, turning off GPU performance from preferences and then try working.
Do let us know if this helped.