Errors with PDI7 on mac

[Dan]

Hi,

I'm getting some frequent hard crashes with PDI7 on the mac.

Anyone seen anything like this before, it seems based around this Verify check:

java.lang.VerifyError: (class: Processor, method: processRow signature: (Lorg/pentaho/di/trans/step/StepMetaInterface;Lorg/pentaho/di/trans/step/StepDataInterface;)Z) Register 24 contains wrong type

Thanks,

Dan