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macOS Sierra: If You're Having Trouble - Let Mark Know Here
After solving initial reports of frame rate slow downs on macOS Sierra, I have gotten at least one direct report of the "spinning beach ball of death" appearing when doing something as simple as clicking an actor. None of the team, on a variety of Macs, can reproduce this behavior. But, also, none of us have the very latest Mac Book Pro machines (the ones with the gimmicky touch bar.)
If after downloading the 2.5 beta from this link http://troikatronix.com/isa25beta you are experiencing problems, please post here. We need to know the following:
1) A precise description of the symptoms
2) The exact model of your mac
3) If possible, an example file that shows the behavior
This issue is at the top of my priority list now. So please tell us what's going wrong and I will get it solved.