I'm having issues with loading certain giga files when using GS3 rewired into Sonar 4. The strange part is that these giga files load fine when GS3 is used as a standalone.
To make things even weirder, some giga files do work fine but others fail to load within Sonar 4 (e.g. PMI Emperor fails, Old Lady loads fine). The error I get is "unknown system error" or something similar, and the error only occurs far into the loading process.

Does anyone else experience any issues like these?

edit: The issue with loading seems to be linked with the intensity of usage of Sonar 4. An increase in intensity of usage of S4 (e.g. lots of VSTI's loaded) causes more problems in Gs3, up to the point that no instruments will load at all in GS3.