https://issues.qgis.org/https://issues.qgis.org/favicon.ico2014-07-21T08:53:23ZQGIS Issue TrackingQGIS Application - Bug report #10921: Polygons disapear when zooming in https://issues.qgis.org/issues/10921?journal_id=546122014-07-21T08:53:23ZGiovanni Manghigiovanni.manghi@gmail.com
<ul><li><strong>Resolution</strong> set to <i>invalid</i></li><li><strong>Status</strong> changed from <i>Open</i> to <i>Closed</i></li></ul><p>remove the .qix file (the spatial index) and it will be ok. Probably it got corrupted somehow.</p>