OS X Mavericks v10.9.2 users

It was recently discovered that some users may experience problems with some Pioneer DJ software and drivers under certain conditions.
- When a user's Mac pre-installed with OS X 10.9.2 has never been connected to REMIX-STATION 500 via a USB.
- This issue does not occur if a user has connected his/her Mac running the previous version (older than 10.9.2)
　to REMIX-STATION 500 via a USB.
　Then he/she updated his/her Mac to 10.9.2.

Pioneer is currently investigating this issue to detect the root cause, but there is a valid work around.
Please see the effective workaround from this link.
(DDJ-ERGO is used as an example in the link. You may replace the name with the model you use when you go through the steps.)