Did instagram change video aspect ratio's again?

I post weekly cinematography dumps on my instagram and purposely crop each video to a 4:5 aspect ratio in my editor as this is what instagram has required since their last (unnecessary) aspect ratio update. As of today my attempts to post 4:5 ratio content is resulting in black bars beneath and above each clip as if they're too small to fill out the entire frame? What changed? Why does instagram keep making unecessary changes? I feel like I have to modify my workflow every month just to get content on the app lol it's crazy. Has anyone else noticed weird changes?