[Instagram] Fix login issues across devices

I uninstalled instagram from my cellphone and was using it only on computer, and sudenly it stopped showing new posts. No error message appears, the page refreshes normaly, but the posts themselves are always the same (Stories were fine, though). I thought maybe logging back to my smartphone would do something, but now I can't log in to any of my three accounts that were linked together, not thought Facebook, not through recovery codes, my password, which I know is correct, won't work. Other people seemed to have had a similar issue, but I couldn't find any solution for myself. I did find that the feed works fine in DevTools mode when you press Ctrl+Shit+i on desktop, so at least there's that. But if I go back to the normal page, it stops working again.