Ironically Omni 3 is now working but the message of data properties file not found for omnipshere. A possible explanation is that the installation was not completed properly. Omnisphere patch data needs to be upgraded to version 3 review installation procedure and install the version 3 data... (how would one do this?...

Very strange.. Really would just like to resolve this error message popping up anytime I open V3 up. But otherwise I somehow got everything working now.