I got the following from eBay France I am sure it applies across the board:
Since January 20, eBay.fr and Commission Junction have been experiencing a technical issue in the reporting system on the CJ
Resulting from this issue, the data posted on the CJ
interface are not correct (from January 20).
Please know that we are working very closely with Commission Junction to solve this problem as soon as possible
We are sorry for any inconvenience caused by this issue and we will be happy to answer any questions you may still have.
The eBay.fr Affiliate Team