Intermittent start-up exception in prod

[aluhrs13]

Startup assembly Microsoft.AspNetCore.AzureAppServices.HostingStartup failed to execute. See the inner exception for more details.
Could not load file or assembly 'Microsoft.AspNetCore.AzureAppServices.HostingStartup, Culture=neutral, PublicKeyToken=null'. The system cannot find the file specified.

System.InvalidOperationException:
System.IO.FileNotFoundException:
at System.Reflection.RuntimeAssembly.InternalLoad (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
at System.Reflection.RuntimeAssembly.InternalLoad (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
at System.Reflection.RuntimeAssembly.InternalLoad (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
at System.Reflection.Assembly.Load (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
at Microsoft.AspNetCore.Hosting.GenericWebHostBuilder.ExecuteHostingStartups (Microsoft.AspNetCore.Hosting, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60)