I am not experiencing that issue. Does it happen with all fonts or just the one in the video?
There is a message that the type was created in a previous version of Illustrator. If the type is from a very old version of Illustrator the type engine may havae changed and you may need to retype the text.
Thank you for the reply. The text of the video was originally created in IL v. 25.3... This problem its happening to a lot of my fonts, but not to all. The space between words its almost completely gone in Optical Kerning as you can see em the attached image. I think its a bug from the last update, never seen this happen before (I always use Optical kerning in my layouts).