Instagram won't link – Community Rewards Review

Tried multiple times to link my Instagram so I can post photos for points and it sends me on a circular goose chase. I click on upload a photo, sign in to IG, immediately taken to CR online (instead of opening the app) where I have to sign in to CR again via Facebook, sign in and I click on the IG button again and then it won't load. I've force closed the app, restarted my phone etc. nothing is working. I have had this feature work previously but not anymore.
Review by Dhiendio on Community Rewards.