We’ve just released a new version of forest-express-sequelize@8.0.10 that should fix your issue (You should be able to display proposal members as a related data).
Let me know if you are still having the issue or if it is fixed 
We’ve just released a new version of forest-express-sequelize@8.0.10 that should fix your issue (You should be able to display proposal members as a related data).
Let me know if you are still having the issue or if it is fixed