Why can't I see any presets in Open AIR despite have impulse responses installed?

I have Studio One v3, and have been using Open AIR fine in the past, but it recently started saying it ca't find "clean guitar room.wav" for one of my songs. I ask it to search in the folder where the impulse responses are stored with no luck.

Open AIR also doesn't have any presets any more. So I reinstalled the impulse responses through the Studio One installation system, but no luck - when I start a new session and insert Open AIR it has no presets at all.

Any thoughts?