Since this morning, can't start the debug preview for any projects, even sample games, with error popup "failed to start preview".
have this errors in console
The usual preview is loading fine
Develop games in your browser. Powerful, performant & highly capable.
Works fine on my side. Can you try a different browser? Disable browser addons that might interfere?
after restarting it worked, so, maybe a graphic card issue, or cache