I have mostly been occupied with solving the Hunspell problems we have had in Iceland. People all over the world have been having the same problems if they have been trying to use Hunspell for their language on a mac using systems later than El Capitan. I have therefore made yet another installer what only replaces the broken file with one from earlier version of InDesing, namely from CC 2015.
So, if you can manually install your Hunspell dictionary files into InDesign but it is not working right, you can use this installer and hopefully get it working.
I am optimistic that Adobe fixes the problem in the original InDesign CC 2018 installer to end this missery that has been going on for over a year.