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  • Tom van Enckevort 100 posts 387 karma points
    Feb 09, 2018 @ 09:11
    Tom van Enckevort
    0

    "Hash not valid for use in specified state" error when retrieving media from cache

    We're running a site (Umbraco v7.5.14) on Azure Web Apps. All the recommended settings for Azure have been set.

    Occasionally there is a flurry of error messages in the log that mention an issue with a crypographic hash:

    2018-02-08 13:25:26,093 [P7232/D3/T265] ERROR Umbraco.Core.UmbracoApplicationBase - An unhandled exception occurred
    System.Security.Cryptography.CryptographicException: Hash not valid for use in specified state.
    at Umbraco.Core.Cache.HttpRuntimeCacheProvider.GetCacheItem(String cacheKey, Func`1 getCacheItem, Nullable`1 timeout, Boolean isSliding, CacheItemPriority priority, CacheItemRemovedCallback removedCallback, CacheDependency dependency)
    at Umbraco.Core.Cache.HttpRuntimeCacheProvider.GetCacheItem(String cacheKey, Func`1 getCacheItem, Nullable`1 timeout, Boolean isSliding, CacheItemPriority priority, CacheItemRemovedCallback removedCallback, String[] dependentFiles)
    at Umbraco.Core.Cache.DeepCloneRuntimeCacheProvider.GetCacheItem(String cacheKey, Func`1 getCacheItem, Nullable`1 timeout, Boolean isSliding, CacheItemPriority priority, CacheItemRemovedCallback removedCallback, String[] dependentFiles)
    at Umbraco.Web.PublishedCache.XmlPublishedCache.PublishedMediaCache.GetCacheValues(Int32 id, Func`2 func)
    at Umbraco.Web.PublishedCache.XmlPublishedCache.PublishedMediaCache.GetUmbracoMedia(Int32 id)
    at Umbraco.Web.PublishedCache.XmlPublishedCache.PublishedMediaCache.GetById(UmbracoContext umbracoContext, Boolean preview, Int32 nodeId)
    at Umbraco.Web.PublishedCache.ContextualPublishedCache`1.GetById(Boolean preview, Int32 contentId)
    at Our.Umbraco.PropertyConverters.MultipleMediaPickerPropertyConverter.ConvertSourceToObject(PublishedPropertyType propertyType, Object source, Boolean preview)
    at Umbraco.Web.PublishedCache.XmlPublishedCache.XmlPublishedProperty.get_Value()
    at Umbraco.Web.PublishedPropertyExtension.GetValue[T](IPublishedProperty property, Boolean withDefaultValue, T defaultValue)
    at Umbraco.Extensions.Models.ModelLogic.CreateMasterModel(IPublishedContent content)
    at Umbraco.Extensions.Models.ModelLogic.CreateMasterModel()
    at ASP._Page_Views_Master_cshtml.Execute() in d:\home\site\wwwroot\Views\Master.cshtml:line 5
    

    Has anyone seen this issue before?

    Could it be a configuration issue, or maybe something else?

  • Alex Skrypnyk 5792 posts 22066 karma points MVP 4x admin c-trib
    Feb 10, 2018 @ 23:12
    Alex Skrypnyk
    0

    Hi Tom

    Can you show the code of the master page?

    /Alex

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