A bug in the ARRL's Logbook of the World (LoTW) online confirmation system that came to light during the weekend of the CQ World Wide CW DX Contest has been fixed, according to League CEO Dave Sumner, K1ZZ. However, logs submitted before 2100 UTC on November 25 might have been accidentally overwritten, so users should check their logs.

It is not known how these problems with LoTW may impact the
projected date of mid-2013 for adding LoTW support for CQ's Worked All Zones
(WAZ) award.