Steps to reproduce

1. Open Endoplasmic Reticulum
2. Scroll down to the crazy big gif referenced here: T131351
3. Tap on the gif

Expected results

Gallery opens with the gif displayed

Actual results

Gallery opens on the first image, and gif is not in the gallery

Environments observed

App version: 5.0.3 Beta
OS versions: 9.3/9.3.1
Device model: Simulator / 6s+
Device language: English

This appears to have to do with the time it takes to render the large image. Investigation should start there.