4.2-RC1.2 | LeagueManager breaks Visual Editor

When the new leaguemanager plugin is active, it’s not possible to save changes in the SiteOrigin Visual Composer widget. This widget becomes available after installing Page Builder by SiteOrigin (v. 2.5.6) and Black Studio TinyMCE Widget (v. 2.3.2).
Whenever I need to update a page or post in which I used the Visual Composer Widget, I first need to deactivate leaguemanager, make the change and then reactivate leaguemanager. This is not very convenient.
I hope this problem could be resolved in the next RC. Thanks