I've noticed for past few days at least that even if the Ultra-Flash Shadow Reflector is the only trinket in my bags, ItemRack doesn't suggest it when hovering over the trinket bar I've created.

Tried re-creating the trinket menu, disposing all my trinkets to bank etc, but it's the only trinket that doesn't seem to work.

To add to this. I'm using the latest version available on the Twitch app.