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EPiServer.Core.InconsistentDataException: Data for x not found


I just got this error and is about to try and figure out why. First stop is of course asking here if anyone else has seen it and know how to get the page back in a working condition?

The stack trace before our code is:

[InconsistentDataException: Data for 1f0194e4-dcbf-4ca4-990f-e0696eb4b1bc not found]
   EPiServer.DataAccess.<>c__DisplayClassa.<LoadLongString>b__9() +507
   EPiServer.Data.Providers.<>c__DisplayClass1`1.<Execute>b__0() +60
   EPiServer.Data.Providers.SqlDeadlockRetryPolicy.Execute(Boolean isInTransaction, Func`1 method) +133
   EPiServer.Core.PropertyLongString.GetDelayedLoadedString(Boolean storeLocally) +443

[InconsistentDataException: Data for 1f0194e4-dcbf-4ca4-990f-e0696eb4b1bc not found]
   EPiServer.Core.PropertyLongString.GetDelayedLoadedString(Boolean storeLocally) +767
   EPiServer.SpecializedProperties.PropertyXhtmlString.get_XhtmlString() +99
   EPiServer.SpecializedProperties.PropertyXhtmlString.get_Value() +47
May 27, 2013 14:41

We are having the same exception shoving up from time-to-time. At the moment we have not found any good way of solving it without restarting the website, which is not really a solution.

There is some code in EPiServer.Global.cs that tries to clear the page cache when this error occurs, which makes me believe that it has to do with the cache getting out of sync.

EPiServer.Global.cs (Global_Error):

InconsistentDataException inconsistentDataException = lastError.InnerException as InconsistentDataException;

if (inconsistentDataException != null)
    CacheManager.Remove("EPPageData:" + new PageReference(inconsistentDataException.PageLink.ID, Settings.Instance.Parent.SiteId).ToString());

May 31, 2013 16:36

Thanks Niklas! Good to know we're not alone.

Jun 03, 2013 11:38

+1 on this problem.

Sep 25, 2013 14:30

The cause is that a loaded/cached instance is lazy loading a string, but that string is no longer available because the content has been republished. The code referenced above by Niklas is supposed to recover from this error for the next request/api call but it's not working, we are fixing this bug in Patch 5. Lazy loading is always tricky, so we are looking into alternative ways of solving this so the exception does not happens in the first place. You can always disable delayed loading of long strings by setting stringDelayedLoadThreshold="0" in siteSettings in episerver.config.

Nov 05, 2013 16:53

stringDelayedLoadThreshold="0" is the way we have solved it.

Nov 06, 2013 10:06

Yes, stringDelayedLoadThreshold="0" works for us as well.

Nov 06, 2013 13:26

Hello Guys,


Quick question, we are using EPiServer 7.1 for a solution and are also experiencing this problem. If possible, we would like to solve it without having to set the stringDelayedLoadThreshold="0" setting so that we can take advantage of the Lazy loading feature.

Had this bug been fixed?


Best Regards

- Wacdany.

Jan 22, 2014 3:24

It's fixed in Patch 5 to be released early this year,  you can get the latest preview build of Patch 5 if you contact support. It's also been fixed in CMS 7.5.

Jan 22, 2014 8:45

Hello Per,

Thanks for your prompt reply.



Jan 22, 2014 8:47

We are getting this problem after updating a test environment to the latest version of the code. It was quite a big update and there were a whole bunch of pages that lost data. It could be recovered by going to the previous version of the page. The issue is that it keeps happening. A user creates a page, goes away from the computer, comes back - makes changes, publishes and it publishes an older copy of the page instead of the latest one. It seems these symptoms match the description of the mismatch in cache states. We will try the stringDelayedLoadThreshold=0 and see if the problem goes away - I wonder when patch 5 will be available to download. I only find up to patch 4 so I will contact support as Per said.

Feb 10, 2014 9:54

We are still experiencing the same issue despite using stringDelayedLoadThreshold="0". It seems to be happening less but I have patch 5 so i will try that next.

Feb 13, 2014 13:24
Mar 18, 2014 10:43
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