# Corrupted .xtc file (Magic number error) in a 150 ns simulation

**URL:** <https://gromacs.bioexcel.eu/t/corrupted-xtc-file-magic-number-error-in-a-150-ns-simulation/877>\
**Category:** User discussions\
**Created:** [September 28, 2020, 9:04am UTC](https://gromacs.bioexcel.eu/t/corrupted-xtc-file-magic-number-error-in-a-150-ns-simulation/877 "2020-09-28T09:04:53Z")\
**Posts on this page:** 1\
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**Author:** ![cblau](https://dub1.discourse-cdn.com/flex017/user_avatar/gromacs.bioexcel.eu/cblau/32/5_2.png) [@cblau](https://gromacs.bioexcel.eu/u/cblau)\
**Post date:** [September 28, 2020, 11:11am UTC](https://gromacs.bioexcel.eu/t/corrupted-xtc-file-magic-number-error-in-a-150-ns-simulation/877/2 "2020-09-28T11:11:54Z")

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Hi Chandra,

have a look here, where we discussed a similar scenario:

> [@WARNING: Incomplete energy frame: nr 1390086 time 1042563.750](https://gromacs.bioexcel.eu/t/warning-incomplete-energy-frame-nr-1390086-time-1042563-750/766):
>
> GROMACS version: 2018.4 GROMACS modification: No I have a problem. I run the membrane simulation. I continue my simulation if it stopped (for example lack of electricity) by using gmx grompp -f eq4.mdp -p system\_mgdg.top -c eq2\_333temp.tpr -o eq2\_333temp.tpr then gmx mdrun -deffnm eq2\_333temp -cpi eq2\_333temp.cpt -v -append But my .edr file is damaged probably. I have 950000 steps and 1425 ns, not 1042 ns and 650000 steps. I have also information WARNING: Incomplete energy frame: nr 1390…

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