I have the most recent PyCharm professional edition with a 1-year license that I purchased in July. This problem started this morning. My PyCharm IDE started indexing and I could hear the fans on my Mac (MacBook Pro Retina 15", Early 2015) while indexing. When the indexing bar reached about 1/4 complete, all my programs on my Mac would stop working and become unresponsive. I've restarted my mac 5 times already, and each time I launch PyCharm, the indexing keeps crashing my whole machine. I also deleted my PyCharm and got a fresh copy, but the problem persists.