OS X Java error and MOTU outputs issues

[SimesN]

Hi There, I have a 2012 Macbook Pro running OS X 10.15.7, MOTU Ultralite Hybrid MK3 interface and a calibrated Sonarworks Xref 20 mic. I'm having problems getting set up with REW. When I open REW 5.20.4 I get a java error message, attached below. In preferences I can select the MOTU as an input device and once SPL meter is enabled I see level coming through from the mic on input 1, but I can't get any output. I can select the MOTU but the Output field is greyed out. I checked the Library/Java/Extensions folder and there aren't any mando files, the only file in there is MRJToolkit.jar. I also read that firewire is an issue so I am using USB to connect the MOTU to the Macbook Pro. I have deleted preferences and opened REW again, unisnstalled REW and installed again but with the same issue. I also removed the MOTU and tried a test just with internal mic and line out but I still had output issues. Hoping someone can help as I'd love to use REW to help test my home studio, thanks!

 

[John Mulcahy]

Did you check the user and system library folders? Something is trying to access the Mandolane classes.

 

[SimesN]

Many thanks John - I had only checked one location, I checked the other and two Mandolane files were in there, removed these and now REW can fully see my MOTU. Much appreciated!