<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
First and only time this has occurred. Logged in as usual on desktop, then remoted (Windows 10 Remote Desktop) to desktop from laptop over Pulse VPN. No other ill effects to session with ~11 apps and many windows open; only noticed when returning to desktop. Issue with resolution change between desktop 2560x1440 (dual monitor, 125% display) and laptop 1366x768 (100% display)?
<If relevant, consider attaching a session log file or a screenshot)>
Invalid access to memory.
The problem happens rarely. I cannot reproduce it.