If I delete one sample do I have to redo DNA methylation data preprocessing

[HeidiLee]

I have DNA methylation data for 532 samples. I did process .idat files for all samples together and got normalized beta values for all samples. One out of 532 samples has missing beta vlaues for 5500 probes. I decided to delete this sample.
Question: Do I have to redo the data preprocessing? I think converting image data (.idat) to signal strength wouldn't change, but normalization would change with different set of samples, even if there is only one sample difference.

[westerman]

You didn't say what program you used. That might help people figure out the answer. Also how long does the pre-processing take? If a short time then, sure, re-process.