I am not sure what you mean when you say you see errors for translation references. Those are two completely different topics. I am not sure what you expect ME to do here. Go ahead and install the latest october build, add your plugin, and fix your exceptions. All you have to do is fix your snake case references in your config_*.yaml files.
Translations are stored in an array created by you, you can use whatever casing you want, not sure how this pertains to the issue at hand. If you expect people to help you resolve your issues, you have to provide way more info other than "I am seing a failure...".
Luke already posted a link to the file that causes the issue, just look at the changes made there, and you should understand how this impacts your code. Hope this helps!