During a rendering I had a voltage drop, my UPS didn’t work properly (damn, but the battery is new!) so PC shut down.
I was more or less quiet because I saved a minute before start rendering, but when try to load my saved file blender report an error never seen before:
Loading: «E:path where is the file» failed: failed to read blend file «E:again path where is located file»: Missing DNA block
It is the same, if I try to upload file from my saved folder or I try to recover from autosave tmp folder, or if I try to recover last session or quit session.
The file is not empty, is 66mb
I can load any other blender file without problems.
Any idea? Did I lose the file?
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I have a student that has been working on a project recently and finally got the steps to work. However, when she tries to open the files in blender, it won’t open. Instead, it takes her to the page as if she was saving it again. Any ideas on why this is happening? I have never ran into this problem before.
Thanks!
asked Aug 25, 2015 at 20:41
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Uncheck the «Load UI» button when loading the file. That’ll keep the user interface as it was before, instead of loading it from the blend file.
answered Nov 12, 2017 at 22:06
dr. Sybrendr. Sybren
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This happened to me, but I easily fixed it. It happened to me since i saved the file while in the Save As page, and knowing this, i clicked on «Back to Previous». This doesn’t exit blender, but returns back to the same state as when you saved. Hope this helps.
answered Nov 12, 2017 at 13:23
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I have been having a similar problem and I have finally figured out a solution. If you are using Windows, go to the .BLEND file you want to open and put it up in a smaller window. Left hold on the file and drag over to the Blender icon program on your desktop and click «Open in Blender.» It should open just fine.
answered Jul 28, 2017 at 15:01
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As robust as Blender is it’s not immune from error, especially those caused unintentionally. One such error is the Missing DNA Block message typically associated with broken or otherwise corrupted projects and files.
Missing DNA Block Cause
The cause for the Missing DNA Block error seems to relate to the way Blender writes data, or datablocks, to *.blend files as they are being saved or modified, if this process is sufficiently and/or more typically unexpectedly interrupted, for example from Blender crashes, blue-screens or sudden loss of power (power outage), the resulting file will be unusable because its contents are incomplete and malformed. When opened after-the-fact, Blender will display the Missing DNA Block error message in the Status Bar running along the bottom of the application.
Important: due to the Missing DNA Block errors nature it’s generally not possible to simply copy/paste missing file data from functional *.blend or otherwise manually edit files to reinsert whatever might appear to be omitted, largely because the order or organisational location the same block of data might appear may differ with each save or update even where no change or inclusions have been made (no additional data is being included), in other words, the contents of ‘line 20’ may not be the same in both files.
Design note: to double-check the error message that appears briefly in the Status Bar of Blender switch the 3D View to the Info Editor – click the Editor Type selector, then Info from the listed of editors.
Access the Info Editor to double-check the error message that appeared – click the Editor Type selector and click Info, any error messages will appear highlighted red (by Blender) in this instance.
The Missing DNA Block error message appearing in the applications Status Bar signifying a corrupted or broken *.blend file that won’t open.
Missing DNA Block Append Fix
Depending on the severity of the problem, i.e. how much data is missing, it may be possible to use Append to import content from the broken *.blend file into a clean project. To do this, from the File menu select Append – File » Append – and then browse to the broken file. Click to select and drill-down into the contents then select the items to be imported. Click the Append from Library button top-right.
Design note: providing the user generated data is intact Append should load whatever is selected. If nothing appears in the 3D View despite it being shown available in the File Browser during selection, it may mean Blender has retained references to content that is now missing, corrupt or otherwise unusable.
It may be possible to retrieve user generated content from broken *.blend files that show the Missing DNA Block error but it will depend on the severity of the *.blend files corruption – shown above the File Browser is blank (right arrow) because the user generated content is missing from the file despite filters being set to display it (left arrow).
Rename *.blend1 Fix
More often than not if the Missing DNA Block message appears the affected *.blend file will be utterly unusable, nothing can be done to retrieve the user generated content it otherwise contained. In these instances it may still be possible to reestablish the project checking whether Blender created a *.blend1 backup file in the project folder or directory. Using Windows or other File Explorer (OS/system dependent), if a *.blend1 backup exists duplicate it (right-click, copy then paste) and renamed the file extension as *.blend – remove the ‘1‘ (number one). It should then be possible to successfully open the new file into Blender.
Design note: the amount of retrievable data contained in the .blend1 file will depend on its last saving or updating. Upon opening save a version of the project to create a restore point (avoid saving over the top of the renamed file so it remains intact and a restore point in its own right).
Renamed *.blend1 file opened into Blender as a normal *.blend with all the missing content available (amount of retrieval may vary depending on when the *.blend1 was created/saved/updated).