I just came off a support chat with adobe, the agent said because Premiere works in software render mode, it is "could be a GPU acceleration issue that may happen due to driver issues": "its more of driver optimisation issue, apple has been informed regarding driver optimization for several GPUs, the team is working in this and should be sorted soon.... drivers are made by GPU manufacturers like Nvidia, AMD or Intel and then they are optimized by the GPU and OS manufacturer for different uses, they have been informed regarding such issues, team is working but we dont have an ETA on this". Does anyone know of any non-Adobe software that uses GPU acceleration or optimization? Would be good to test this theory.
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