Wont save capabilities for custom role

I hate giving bad reviews as I know how much work goes into these plugins, often by one person. But we have wasted so much time and lost orders because of a known bug. I can see that others have reported this bug from at least 4 months ago. So I want to warn others. The whole point of us using this plugin was to create a custom role and to assign specific capabilities to that role. For a short while it worked so we launched the site. And then it stopped working and caused chaos. We have spent FOREVER trying to figure this out. We will be moving to a different plugin asap.