GMAT Sentence Correction (SC) | Re: QOTD: Heavy commitment by an executive to a course of action

D. Executives’ being heavily committed to a course of action, especially if it has worked well in the past, makes them likely to miss signs of incipient trouble or misinterpreting them when they do appear.

Also to note: miss signs and misinterpreting them are terribly unparallel - this is also an example of how GMAT pushes multiple errors in long complicated sentences such as these.