4.12 Released!

[=;541458]
Major memory leak/bug in 4.12 editor.

I have tracked a memory with the new editor. I found that the “UBlueprintThumbnailRenderer::Draw” is spawning countless SpawnPreviewActor without deleting them every tick when a blueprint asset is visible in the content browser.

I wanted to give a heads up here as it is causing some crashing on my project. After debugging it more, i’ll post it in answerhub.
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Not positive, but this sounds a lot like the I submitted recently:

Wasn’t caused by the Planar Reflections, something in the editor itself.