If they cross the gen 250 barrier, you can use the purgeuploadlist command to get rid of the corrupted data; and upload everything that started with gen 0.
If the first gen of those buffered gens is prior to gen 160, then I'd recommend moving on to a clean install in a clean directory.
If you see this again, definately test out the system to see what's happening. In the mean time, keep a copy of the corrupted data for awhile, in case Howard and Elena would like to see it. (i.e. if others are seeing the same problem).