Hi,
I’d like to contribute to this post as I also ended up with the same issue but the solution proposed in here didn’t work for me.
One thing I tried was adding a fallback result on the main CHT, and while it solved this specific error for me, it was breaking pose selection in some scenarios, so I had to remove it. After all, in the GASP project there’s no fallback either.
However, thanks to that attempt, I’ve noticed through the Rewind Debugger that the CHT would occasionally go to the Fallback result for a single frame.
Without a fallback then, you get several frames in which no database is selected / loaded, pretty much every time the CHT transitions from one row to the other, thus giving me the error.
Even with the error, my MM setup work as intended, so I wonder how could this be fixed.