.mldatx file lost all data in the “Archive” section after saving failed due to insufficient disk space, while file size remains unchanged

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Suppawich
Suppawich 2025-12-20，15:25
I am experiencing an issue with a MATLAB .mldatx file and the Data Inspector.
Initially, I saved the .mldatx file for the first time before plotting any data in the Data Inspector.
After that, I plotted the data and attempted to save the file a second time.
During this second save process, the save operation did not complete successfully because the disk was full, which caused MATLAB to throw an error. After freeing up disk space, I reopened the same .mldatx file.
However, when opening the file again, all run data under the “Archive” section is missing, including all plotted graphs. At the same time, the file size shown in the file system is unchanged from before the issue occurred.
I would like to understand:
  • Why the Archive data and plots disappeared even though the file size is still the same
  • Whether the data is corrupted or still recoverable
  • If there is any way to restore the lost Archive data or prevent this issue in the future

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