Massive slowdown in Render with Stencil Layers

Hey there,

I´ve seen a massive increase in rendertimes in the Movie Render Queue, when using Stencil Layers.

I don´t know when this happend, but somewhere between 5.3 and 5.6 i guess.
The same sequence without additional stencil layer renders in about 2-4 minutes, with stencil layers it takes around 30 minutes, rather than the linear increase for each renderlayer (so, with only one layer enabled, it should only be like 4-8 minutes)
Warm up frames render fine, but then I have a long wait til the actual render starts and the rendering gets super slow.

Anybody else experiencing this?

I can´t remember changing any specific rendersettings in my default render preset (1/8 TSR, rendering to Multilayer EXR with DWAA, “accumulator includes alpha” checked, a few console variables and the default game overrides).

Still possible its related to something in my projects settings, I just don´t have the time to do some proper troubleshooting with a clean project at the moment, so wanted to check if its only me or if anybody else experienced that kind of slowdown.

Nothing has been brought to our attention afaik. You can use the different stat commands while rendering to see what its stalling on. Just hit the tilda key when a MRQ render window is up to get to a command line. Is there a different between MRQ and MRG?

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