According to the documentation found here it indicates that the generic RPM doesn't have all available modules as opposed to the version specific RPM:
The generic RPM above contains all the libraries (such as libpcre and libexpat) that are needed by NXLog, the only dependency is libc. However, some modules are not available (im_checkpoint, for example). The advantage of the generic RPM is that it can be installed on most RPM-based Linux distributions.
Is there documentation for what modules are not available?
Are there any issues for deploying this version that I should know about up front?