When something goes wrong while a baton is on the uploader, three things tell you:
These are the problems that can be listed, and what to do about each.
The baton stopped answering before all of its data was in, usually because it was moved or lifted. Nothing of that download is kept, and the baton still has everything. Place it on the uploader again and keep it still until the message says Please remove the baton ....
The contact between the baton and the uploader was poor for a moment. The program read the baton again from the start and the download is complete, so nothing needs to be done. If it happens often with the same baton or uploader, clean the contacts.
The baton's clock was not running when these points were touched, so the baton could not say when. The touches are real and are kept, but only the By Download report shows them, marked time not valid with the time of the download. They are left out of the other reports, because those are all about when something happened.
The baton did not give a date and time at all. If Set date time is in the To Do list the clock was set and runs again; the list says it has been set. If it is not in the list the clock was left as it was and the baton will keep recording touches without a valid time: switch Set date time on, or set the baton's clock some other way, before it is used again. In the Downloads and By Download reports the baton's date and time read clock stopped for such a download.
Newer batons (version A005 and later) say so when they start up after losing power: their clock then starts again from an old date. The program puts the times recorded after that right, using what the baton's clock said at this download, and keeps the times recorded before it as they were. If the baton lost power twice between two downloads, the points touched between the two cannot be placed in time: they are kept, marked time not valid, as above. The baton shows Clock lost in red under Baton Info and in the Baton report. Have its battery and contacts looked at.
Batons of this version are known to give trouble: they do not always answer the uploader, and what they hand over can differ from one download to the next. The baton is still downloaded, but its data cannot be relied on. Have it replaced.
Each record in a baton carries a check number. These records were received correctly but their check number is wrong, so they were already damaged in the baton's memory. They are kept. A baton that does this often should be looked at.
The baton stopped answering while that was being done. Place it on the uploader again.