Just a heads-up for anyone running Genefer OCL tasks on their Mac. Since I upgraded to the latest point release of the OS a few days ago, I have been getting frequent GPU crashes. Specifically, macOS 10.12.2 is fine, 10.12.3 now causes problems.
I'm currently investigating and will try to file a bug with Apple, but I am pessimistic about their response time, based on past experience.
For reference, I am running a system with dual ATI FirePro D700s - I don't know if this issue will affect any other devices.
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