Uncaught error from WebKit 605.1.15 on iOS 18.7/macOS 10.15.7: ReferenceError: Can't find variable: elementId

[iSteve-O]

iOS device model, version and app version
Model Name: iPhone 16 / iPad Pro (M4) / MacBook Pro (M4)
Software Version: 26.3.1 (all)
App version: 2026.2.1 (2026.1766) (all)

Home Assistant Core Version
2026.3.1 (bug started with 2026.2.0, I believe)

Describe the bug
Any time I open a dropdown menu in the companion app on either the iOS or macOS apps I get the error below in the logs. The logs below are from selecting add-on logs and selecting entities in automations from the drop-downs, but I think it is every drop-down. It does not happen when using the same drop-downs in a browser.

To Reproduce
Open the companion app to the logs page and select the dropdown to pick another add-on log and the error should come into the core logs immediately.

Open an automation or create a new one. Add an action to turn off a light. Select an entity from the drop-down & then check the core logs.

Expected behavior
No errors when drop-downs are used.

Additional context
Log entries:

2026-03-10 00:22:49.744 ERROR (MainThread) [frontend.js.modern.202603040] Uncaught error from WebKit 605.1.15 on macOS 10.15.7
ReferenceError: Can't find variable: elementId
/config/automation/edit/1736929525315:24:57
global code (/config/automation/edit/1736929525315:28:3)

2026-03-10 00:23:16.812 ERROR (MainThread) [frontend.js.modern.202603040] Uncaught error from WebKit 605.1.15 on macOS 10.15.7
ReferenceError: Can't find variable: elementId
/config/logs:24:57
global code (/config/logs:28:3)

2026-03-10 00:24:05.564 ERROR (MainThread) [frontend.js.modern.202603040] Uncaught error from WebKit 605.1.15 on iOS 18.7
ReferenceError: Can't find variable: elementId
/config/logs:24:57
global code (/config/logs:28:3)

2026-03-10 00:24:18.371 ERROR (MainThread) [frontend.js.modern.202603040] Uncaught error from WebKit 605.1.15 on iOS 18.7
ReferenceError: Can't find variable: elementId
/config/automation/edit/1703159550145:24:57
global code (/config/automation/edit/1703159550145:28:3)

I really appreciate your hard work on the app!