Are you using InDesign version CC 2017.0 or CC 2017.1?
If you are on CC 2017.0 you can try to see if the following two workarounds help you.
1. Upgrade to CC 2017.1 from Creative Cloud
2. Trying out this plugin at the help page Troubleshoot text selection issues
Do let us know if you are on CC 2017.1 or if above steps dont resolve your problem.
Version CC 2017.1
I'm unable to install the plugin since our corporate IT dept has our machines overly locked down.
The only thing that seems to reliable work is to close everything, restart my MacBook and then open InDesign before any other applications. Then it works OK until the machine goes to sleep. At which point I try force quitting a few times before resorting to the full restart.
Are you on Mac 10.12.4 and with Intel GPU?
If yes, try this
You can goto preferences (command+k) and then navigate to GPU performance.
Then turn off the below highlighted preference.
Working then should be fine!
If its not an Intel GPU that you are using, you can start by cleaning your InDesign Cache and preferences Troubleshooting 101: Replace, or "trash" your InDesign preferences
Also, can you mail me the document with which you are facing the issue at email@example.com , so I too can reproduce the scenario.
Let us know if this is the case, and if the workaround helped you.
After giving it some time, that seems to have helped. It's not crashing or giving me the never ending spinning beach ball anymore.
Fingers crossed that this did the trick.