Just updated to Vectornator 4.12.2
and the above issue has been resolved.
Thank you for this awesome app, and customer support! 
I just would still like to reiterate what I’ve mentioned above, that the typography needs to be worked on. For instance, the underlining and strikethrough, in Arabic and Hebrew still has not been fixed. As it has already been mentioned here, and a bunch of other issues that don’t come to mind at the moment.