Works from any room. As soon as you load a material collection, some important internal call is made to reload the pose preview. So far, this seems to be the only way to make that call.

I'm constantly surprised at how some really basic UI stuff is just not added year after year after year. I mean, come on. This is not rocket science, to shim a few API calls into the Python engine.

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)