Hi There,

Version 7.5.11.

I am having a very weird issue when editing a document type and adding/removing or editing any properties in a production environment. Note this isn't happening in the development environment.

All changes will be reverted back when the app pool is restarted. I find it very odd as I can see the properties in the db, but as soon as the app pool is restarted they're gone.

The only consistency is this error in the iis logs when the site is restarted:

System.NullReferenceException: Object reference not set to an instance of an object.
   at StackExchange.Profiling.MiniProfiler.StopImpl()
   at StackExchange.Profiling.BaseProfilerProvider.StopProfiler(MiniProfiler profiler)
   at StackExchange.Profiling.WebRequestProfilerProvider.Stop(Boolean discardResults)
   at Umbraco.Web.Profiling.WebProfiler.UmbracoApplicationEndRequest(Object sender, EventArgs e)
   at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

Has anyone come accross this before?

Thanks in advance!

Edit: I believe the above to be a red herring as the last time I didn't see this error. Note in order to force a app pool restart in my production environment I am deploying the latest build which includes overwriting configs etc but doesn't touch the db where properties are stored.

Edit2: I managed to persuade one of the dev ops guys to let me stop and start the app pool without deploying and I can confirm it removes the newly added properties.