I updated ACME's maps to Leaflet version 1.8.0 this morning. I immediately noticed there was a problem with panning inertia. That's the feature where when you move the map, it keeps moving for a little bit. Well, it was moving by a lot. Like, a slight flick of the mouse could take me to Antarctica. As a workaround, I disabled panning inertia on all my maps. If the problem gets fixed in a future version, I'll re-enable it.