I stopped playing LE for a few months. When I came back roughly two weeks ago, the game frequently and unpredictably crashed when I either launched it, tried to enter the game with a character, or tried to enter a different zone. More rarely, I get in the game, have the UI visible, but the actual play area is black. Once it has crashed, I have to reboot my PC for LE to launch at all.
I run Windows 10. I have every reason to believe both my OS and graphic card drivers are up to date. I have checked file integrity through Steam and found no issue. The problem appears worse when I have other apps open when I launch LE. Under similar circumstances, I can run other games (e.g., Diablo 3, Civilization VI or Guild Wars 2) with no issue whatsoever.