App Layering create version never finalzing

[Bruno Lacrotte]

When we will create a new version of OS Layer or a new Plateform Layer from our template Windows server 2019 that never works. They never finalizing.

We have this issue:

An unexpected system error occurred. Retry the operation or contact technical support.

 Exception Message: StartIndex cannot be less than zero.

 Parameter name: startIndex Exception Details: at System.String.Substring(Int32 startIndex, Int32 length)

 at Citrix.AppLayering.CompositingEngine.Recipes.BootForFinalizeRecipe.ConfigureBcd(String sourceDevice)

 at Citrix.AppLayering.CompositingEngine.Recipes.BootForFinalizeRecipe.Validate()

 at Castle.DynamicProxy.AbstractInvocation.Proceed()

 at Castle.DynamicProxy.AbstractInvocation.Proceed()

 at Unidesk.RecipeManager.ChefSharp.ChefSharp.Cook(String recipeName, IRecipeEvent recipeEvent, IRecipeEventHandler eventHandler)

[Raymond Colon]

I see you have a case open. It is best handled via the case, to gather the logs and other data related to your environment.