This investigation comprised two studies that sought to identify the role of COVID-related disruptions in Australian university students' academic motivation and engagement. Study 1 involved a dataset of 500 university students and examined the links between COVID-19 pandemic disruptions (remote and hybrid learning modes, lockdown, isolation) and students' adaptive (e.g., planning and monitoring) and maladaptive (e.g., disengagement) dimensions of the Motivation and Engagement Scale (MES). Study 2 compared the mean motivation and engagement of Study 1 participants with mean levels from four published pre-COVID-19 Australian studies (N = 55, N = 233, N = 420, N = 941 university students) that also used the MES. Study 1 showed that lockdown and isolation (and not remote/hybrid learning) were associated with problematic motivation and engagement--with lockdown and isolation effects particularly noteworthy for maladaptive motivation and engagement. Study 2 showed that relative to the four pre-COVID-19 samples, the COVID-19 pandemic sample experienced difficulties with motivation and engagement, and again particularly so on maladaptive dimensions.