Despite the age of this post, it seems the circumstance and issue (above) has not changed on macOS 11.4 as of 2021-08-09. Just wondering @secure whether DTS was able to assist with your usage and if so, whether their solution may be shared for the benefit of the broader community? Or perhaps Apple requires others with same need to open DTS cases? I can open case, but only if it appears they may be able to help find a workable solution. Thanks for your detailed post on this rather esoteric topic.