I am using Elementor (not the Pro) and had the same problem. Updating Elementor fixed it.
My version is bellow 6.3.2 and I have this issue…
No, I think I will try another plugin. Everyone seems to have this problem because of Polylang plugin and they think that it’s not related…
Polylang, can you do something about that ? Your plugin is unusable because of this.