Following a split action, the network does not appear within SM.
The reason for the issue is due to the geometry stored against the section, i.e. null values are being stored due to corruption of the data. First, the ne_id needs to be obtained and used in the following query
select t.id, t.x, t.y, t.zfrom <Spatial table>a, table (sdo_util.getvertices(GEOLOC)) twhere ne_id = <ne_id>;
Once you have confirmed some of coordinates contain null values, run the following to correct the issue:
select geoloc into l_shape from <Spatial_Table>
where ne_id = 284762;
l_last := l_shape.sdo_ordinates.last;
l_shape.sdo_ordinates(l_last - 2 ) := <correct coordinates>;
l_shape.sdo_ordinates(l_last - 1 ) := <correct coordinates>;
set geoloc = l_shape
where ne_id = <ne_id>;
Alternatively, please contact support for further assistance.