Unexpected token errors using BashSupport plugin

I'm editing bash scripts using BashSupport Version: 1.6.12.172 , in PyCharm Community Edition 2017.2.2

Some .sh files show up fine.

Others are all in red in the editor with 'Unexpected token' errors.

Both kinds actually run fine - there are no real errors.

I tried everything I could think of: line endings, re-creating the file, etc. 

Cannot get rid of the red.

Thanks for your help.