AV9 - disappearing route events - urgent :(

[Maria Claudia Guezala Villavicencio]

AV9 - disappearing route events - urgent :(
Thread-Index: AcpeKlNYyJKyvUIkS4CmpdzhWln7FgFrom: "Guezala, Claudia M." <[hidden email]>
To: <[hidden email]>
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Hello listers! Hope you can help me.
Ive created route events (points) along 6 tracks, then converted to shp,
and when editing some of them along 1 track, suddenly 2 points
disappeared. they r still on the attributes table, but cant be seen on
the map, neither edited. When selecting with the editing pointer, a
little x appears on the site where the points should be. How can I
recover my points??!! I cant continue with my work..
cheers,
Claudia.