Facebook Auto log-in for Dgrin Challenges?

I play in the Dgrin challenges, and when I attempted to upload my photo to the challenge gallery, it would not give me the opportunity to log in for the challenge, but automatically logged me in with my Facebook account. Months ago I set my FB account to NOT auto-log-me-in with Smugmug and that solved the issue at that time. I do not know why all of a sudden it decided I needed to auto-log-in to FB now, but the only way I could enter the challenge gallery today was to REMOVE the app from FB completely. I know that others have had this same issue, and believe it should be addressed and fixed. I would like to have the Smugmug app available in Facebook, but not when it takes over. Thank you in advance for getting this fixed.

Sorry I originally posted this in the Support forum but got no response. Just realized that there is a subforum for bug reporting so I have reposted it here.