JAWS doesn't narrate Treegrid rows

[kolaps33]

Summary

Brief description of the issue. Please list any specific steps.

Example:

1. Run the JAWS
2. Go to https://www.w3.org/WAI/ARIA/apg/patterns/treegrid/examples/treegrid-1/
3. Navigate to the treegrid example(under the "Example" heading) with TAB key
4. navigate through the treegrid with up/down arrow key

Expected result

JAWS should narrate the treegird row

Actual result

When user navigates using up or down arrow keys JAWS is just silence. No narration.

Example

provided in repro steps

Additional Information

it looks to me as some regression, JAWS or Google Chrome
what is really weird this is reproducible when user comes on the page for first time
Once user start navigate into treegrid with right arrow key, then JAWS start to narrate it.

JAWS version and build number

2024.2406.121

Operating System and version

Windows 11 Enterprise
OS build: 22631.4037

Browser and version:

Chrome Version 128.0.6613.85 (Official Build) (64-bit)

[JAWS-test]

With JAWS 2024.2310.70 the problem does not yet occur. The output is also correct with JAWS 2023.