I updated panoramica after seeing the latest improvements but after attempting to use it all my screenshots appear pure white and my character no longer looks around to take the pictures.

Remove OptiFine and similar mods when taking screenshots, then it should work :)

I use iris and I would rather not. That's why I take the panorama's in the first place is to have nice shader screenshots for the main menus.

Panoramica v1.2.1 should fix this! Thank you for your report!