Instagram does not load stories

iPhone 8: Instagram has problems loading stories. The circle appears and it is loading dozens of seconds each video or freezing at loading. What I have done so far: 1. tested on Wi-Fi 2. tested on cellular data 3. turned on/off assistant (to smart switch between Wi-Fi and cellular data) 4. reinstalled instagram app 5. rebooted phone Other apps are working ok, the problem exists only in instagram. EDIT: Seems like from 2020-12-18 the problem is gone on iOS 14.2. I suspect Instagram app update has resolved the problem. iOS 14.3 seems fine also.