Put the card back into your machine.
Unplug your machine for about 5 minutes or so then plug back in.
Tomorrow, check the card again. You may have lost some data due to the screwy-ness but not much.
In SleepyHead, down at the bottom of the day with the multiple sessions, click the black/green boxes of one of the double times. You don't want time to disappear from the graph, but you want it to blink and look "cleaner" if that makes sense. Every once a while, SH does that. Not as much as it used to. Make sure you have the latest version.
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01-11-2014, 04:30 PM
(This post was last modified: 01-11-2014, 04:33 PM by Surly.)
I would try the following (aborting if any step didn't work):
1. Make a backup of the SD card on your computer, remove the offending session data from the backup and see if the backup data imports into SleepyHead without issue.
2. Copy the backup to a small capacity SD card and see if your Resmed machine doesn't give you data card error when inserting the SD Card and correct the error by reformatting it. 3. Check that your Resmed device hasn't coped back the offending data to the test SD card.
4. Delete the offending data from your Remed SD care.
5. Purge the offending SleepyHead data day via the menu string: Data->Advanced->Purge CPAP Data->Current Selected Day
Hope this helps.
Edit: Ignore my suggestion. Do what Paula suggested - Sounds like the voice of experience to me.
This is interesting. I didn't know you could delete just one day's data. I had seen the Advanced > Purge CPAP Data, but never went further because I assumed it would delete all the data, and I certainly didn't want to delete my data. But in late December I had one horrible night where my AHI was 7.45, although it averages 0.90 and is rarely over 2.5. I decided to delete the data for that day, just because it is messing up my pretty numbers. But when I tried it SleepyHead crashed. I tried it several times and it always crashes as soon as I click on Delete Selected Day. This is SleepyHead 0.9.3-0(beta), compiled from source several months ago.
Oh well. Not a big deal.
I can't tell you how to fix your problem, but one important lesson I've learned about corrupt data is to be sure you power the S9 down before removing the card. I was have similar issues until I learned on this forum how to shut it down and power it up.
With the SD card still in the machine, press and hold the I/O or power button down til the screen goes black. Click the little lock button to "lock" on the card. Reverse the procedure when replacing it.