Is this a bug, enhancement, or feature request?

Bug

Describe your proposal.

Guided sourcing users reported that when they click or point mouse on the vertical lines of table, a blue line appears and if the user does horizontal scroll, this blue line remains present on the screen.
Expectation: This blue line should not stay on the screen when the user scrolls horizontally.

Can you handle that on the application side

No

Which versions of Angular and Fundamental Library for Angular are affected? Please, specify the exact version. (If this is a feature request, use current version.)

angular: 15
core / platform: 0.43.37

If this is a bug, please provide steps for reproducing it; the exact components you are using;

Please check the recording attached.

Please provide relevant source code (if applicable).

Please provide stackblitz example(s).

In case this is Accessibility related topic, did you consult with an accessibility expert? If not, please do so and share their recommendations.

Did you check the documentation and the API?

Did you search for similar issues?

Is there anything else we should know?

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