we are working on one big layer at the same time (10-20 people). Some of us use QGIS 2.8.1 and the other 2.6. The user with 2.8 have a lot of crashes (QGIS). The 2.6 users don't have this crashes but to add a feature is incredible slow. The Postgres 9.4 server is running on a Virtual Maschine (Hyper V) with Win7. Maybe it's the network and not QGIS? Maybe someone have an idea. Would be great 
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