Board Thread:Support Requests - Getting Technical/@comment-30252184-20181022093522/@comment-24014422-20181022102918

While I don't understand the language in which Chrome's message is written, I think it is just that the source sub-editor of the Visual Editor lagging indefinitely. Hence, this pop-up message appears.

It used to happen to me a lot, which was due to low internet speed.

It is nothing critical. And if this happens to you frequently and you're stuck with it, you could press the "esc" button and try again.