Anyone facing issue with Forum Reply Editor Option

Today I found the editor of the forum is not working as expected.

Technical Forum Post -> Reply

I clicked on Reply option in the Forum questions and when start typing the answers, the "Space" was not working, once I select all and delete the content of the editor and again start typing the editor works fine.

Please check the same, if that with my machine or for everyone.

Please respond, if you face the similar issue or if that works fine.