Yes, there is a dev branch release that’s available now. I posted instructions how to update to the dev branch on another thread here: Issue thread (GDO blaQ): Purple button garage opener with 888LM/889LM wall button - #77 by nate
We’ve been testing it for about a week and so far so good. I was planning on releasing it today or tomorrow.
After updating to this release, select the protocol to Security+1.0 with smart panel. Your issue is not actually related to the RJ020, the problem is the wall button. This setting will tell the blaQ that you already have a digital/smart wall button so it will not try to emulate one.