Happens to me too. Rather exclusive to Main Computer, rare on clients, which can still use AC even when AC crashes on Main computer (Peer to Peer set up). Began about 6m ago v8, persisted upon upgrade to v9.4.2 At first was few times a week, now daily, sometimes twice a day. Appears to be completely random as to what is going on at the time with use of AC or concurrently running unrelated software. Only AC crashes, all other software hums along unaffected as does the OS (Browser: Chrome, email client Thunderbird, windows 10 file explorer, LibreOffice, MS Paint). Time of day also appears random, as likely in middle of business day with all staff logged on as it is late at night when I'm here alone. I have a pending tech service appt in a few weeks to have them investigate. When it crashes, all work in progress is lost, upon restart it does not recover last chart. Anytime I've been working on charting a single patient more than 15 minutes at a time I save work, otherwise it is lost if crashes. Sometimes I get impression it is associated with clicking too rapidly among a series of controls, but other times happens with a single click.
