not sure og this is the right place to share this. So if
it isnt then just delete IT. So i have a problem on instagram. Where the picture gets realy grainy. And i know that instagram compresses pictures som i have the right exsport settings from Lightroom. But AS you see in the pictures abow. One is good and the other is grainy. So first i select what picture i want to post and then i press Next and that happends. IT just gets grainy. I have posted pictures before on instagram and AS far as i can see this has never happened before.
I believe there is some issue going on with the Instagram app right now, as the same thing has happened with me today, however, my images was not edited in Lightroom, I use Photoshop for editing images. Let's wait for a patch or update from Instagram and see if it resolves the issue with images getting grainy.
You may get in touch with the Instagram support team and see if they have some suggestions around it.