I'm encountering an issue with IgrActionStrip in the IgrHierarchicalGrid component (React). The action strip works correctly on the root-level grid (Band 0) — it appears on hover and persists as expected.

However, for child grids (IgrRowIsland, Band 1), the action strip only appears briefly after initial render (a few seconds). After that, hovering no longer triggers the display of the action strip. The keyboard shortcut ALT + + still works for row adding, so the action strip logic itself seems functional, but the UI is no longer responding to hover events after the initial window.

I have confirmed this behavior:

• In my own project using the latest Ignite UI React packages

• In the official documentation demo (linked below)

This makes inline row addition on child grids unreliable via mouse/hover interaction.

Steps to reproduce:

1. Render a hierarchical grid with an IgrRowIsland configured with IgrActionStrip and IgrGridEditingActions.

2. After initial load, expand a parent row and hover over child rows.

3. Initially the action strip appears on hover, but stops responding after a short period.

4. ALT + + still triggers the row add UI correctly.

Expected behavior:
Action strip should consistently appear on hover over child rows, just like it does in the root grid.

Demo link:
https://ko.infragistics.com/products/ignite-ui-react/react/components/grids/hierarchical-grid/row-adding

Please let me know if there's a workaround or planned fix. Thank you!