When building Plugins in Advanced mode, users have the option of including a wide range of variables in their custom instructions. Recently we made a few new variables available, including {{ scene_summary }} and {{ character_beats }}. While those variables worked flawlessly on new Plugins, there was an issue preventing them from working on older Plugins that predated them.
We've resolved that issue, and all available variables now work on Plugins regardless of when they were originally built.