In the last few weeks it often happens that VE gets stuck while loading. The progress bar reaches a bit after the middle and then nothing happens. It actually gets loaded only after refreshing once or twice, or after editing in source and then switching to visual editing.

This happens to myself and to at least one more Hebrew Wikipedia editor.

It happened to me in both Firefox and Chrome, in several different Wikimedia wikis - Hebrew Wikipedia, English Wikipedia, Meta, Incubator, Arabic Wikipedia, and others.