I have a couple of keywords with broad, phrase and exact variations. They were running fine but now I don't see them, and under one, there are only six advertisers. The keywords meet the minimum suggested CPC and are active. The campaign has a very high daily budget and is "OK" according to Google's tool. The campaign is slated to run for the next 4 years. These are not geo-targeted ads; they run all over the U.S.
Any idea why Google says they are active but I can't see them?