Web planner shows 6km/h speed while stationary for 15 minutes

The title says it all; speed should be shown as zero km/h. Whereas LM4 correctly shows a gap on the chart during this period.

https://link.locusmap.app/t/c52ofy

trackpoint immediately before stop, next trackpoint immediately after continue moving

<trkpt lat="-42.8660382" lon="147.3363538">

<ele>0.86</ele>
<time>2023-12-25T23:48:28.000Z</time>
<hdop>6.00</hdop>
<extensions>
<gpxtpx:TrackPointExtension>
<gpxtpx:course>22.9</gpxtpx:course>
</gpxtpx:TrackPointExtension>
</extensions>
</trkpt>

<trkpt lat="-42.8660920" lon="147.3363335">
<ele>0.17</ele>
<time>2023-12-26T00:06:35.000Z</time>
<hdop>4.00</hdop>
<extensions>
<gpxtpx:TrackPointExtension>
<gpxtpx:course>276.0</gpxtpx:course>
</gpxtpx:TrackPointExtension>
</extensions>
</trkpt>

The track recording profile had auto-pause & record only when moving both on, otherwise there would have been other intermediate track points. I have now turned both of these setting off. However while stationary for 15 minutes there still shouldn't be a displayed speed of 6km/h.