Bar5 HDMI eARC No Volume Indicator

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I recently purchased a Klang bar5 and sub5, and it seems to be working fine apart from the volume indicator not showing when I use the television remote.

When I use the sound bar remote it shows the volume indicator on the sound bar but not on the tv. It does change the volume.

When I use the television remote it does not show an indicator on either the tv or the sound bar. It does change the volume.

The absence of on-screen implies that CEC simple link is used, but nothing is showing in the sound bar display screen.

The television is LG. It is connected via HDMI eARC. The sound is changed fine, but the display does not seem to work for CEC simple link.

Will a patch be rolled out to fix this?