No AR on New Infused Fractal Rings
That’s how they’re supposed to work as per the release notes for the Fractured! living story:
Improvements to Agony Resistance/Infused Gear
- All infused ascended equipment now has a special infusion slot for Agony Resistance infusions.
- Agony Resistance infusions can be found in fractal reward chests.
- All existing, infused ascended equipment has a +5 Agony Resistance infusion in the Agony Resistance slot by default, in place of the natural +5 Agony Resistance.
* Agony Resistance infusions provide +1 or more Agony Resistance.
* Artificers can combine two identical Agony Resistance infusions with a Thermocatalytic Reagent to create a single, more powerful Agony Resistance infusion.- Newly created or dropped infused ascended equipment will have empty Agony Resistance slots.
https://forum-en.gw2archive.eu/forum/info/updates/Game-Update-Notes-November-26-2013
Only existing infused rings come with the built-in agony resistance. Any additional rings you find won’t have that and you’ll need to upgrade them using the new agony resistance infusions.
Thank you Zedd for your quick and helpful response.