New behavior with white resin on latest firmware

I’m printing with white resin today, and I notice now after each layer that the build platform is lifted a little bit, just like before, but then after a beat it is lifted so that the entire model is brought up out of the resin in the tank. Then it’s plunged back down into place for the next layer.

I don’t believe I saw this sort of thing with clear or black (but I may be misremembering). Is this new?

Mine started to do this 2 days ago. Also print estimate was 1hr 30m took 4hr 27.