This article presents the findings of a study exploring students' reports of their engagement with online learning and assessment during the COVID-19 pandemic in Saudi higher education. Students shared perspectives on Twitter about their engagement, and research data was collected from their tweets posted between March and May 2020. A total of 124,810 tweets were analysed using MAXQDA quantitative and qualitative tools. The findings indicate that students' engagement with learning and assessment was affected by the challenges of the sudden shift in learning mode and alterations in assessment methods. Open communication between students and faculty are essential for ensuring shared understanding and acceptance. Additionally, departmental support and mediating between students and faculty members is necessary and should be a priority in cases where communication is lacking. Results are discussed in relation to current literature, research implications, and future directions.