How to fix the “allow access to photos” on Instagram issue for Ipad
Settings>scroll down the the list of apps>instagram>photos>limited access/full access. If you already have the one you want selected then click on the other one and click on the one you want again (for example you want full access, nd its already selected then select limited access then select full access again). This worked for me. I reinstalled the app and restarted my ipad before this idk if that helped.