• Hub LR, firmware 4.6.0
• Flic iOS app 7.1.1 (latest App Store build)
• Hub Studio package running, calls flicapp.virtualDeviceUpdateState("Light", "Bedroom dim", {brightness, hue, saturation}) successfully

Setup

• Virtual device created via Providers Hub → Flic Hub Studio → Add Virtual Device → Light → "Bedroom dim"
• Provider shows enabled/ticked in Providers Hub
• Device is visible in the Flic Hub Studio management page

Steps

1. Open the Flic Twist device → Twist tab → +
2. Choose Smart Dimming → Brightness
3. The provider list appears, including Flic Hub Studio
4. Tap the Flic Hub Studio row

Expected
The row expands and lists Bedroom dim, with a tick to select it (as in the Hub Studio documentation screenshots).

Actual
Nothing happens. The row does not expand, no device is listed, and there is no way to select the virtual device. Only the ⋮ button responds, and it opens the add/delete virtual-device page.

Already tried

• Deleted and recreated the virtual device after the 4.6.0 firmware update
• Restarted the Hub Studio package (console confirms virtualDeviceUpdateState succeeds)
• Force-quit and reopened the app
• Power-cycled the Twist
• Tried both Smart Dimming and Advanced Dimming paths

Note
This is exactly the bug reported for Android in topic 18586, which you fixed in Android app 4.0.11 ("We must have missed this when we upgraded the UI of our app"). It appears the iOS app still has the old behaviour. Virtual devices are unusable on iOS as a result.

Cheers
Stephen