Alright, for the stacktrace: what would be my best way to debug released code (from Nuget), do you guy have debug builds available? The other thing is that providing a sample code is next to impossible since it happens only in a customer´s Azure environment, and we are not able to access those or receive data files for analyis, nor give data files away. We might be able to get a dummy database if it crashes in the same way as with the production Db. BR Florian