When switching from Scene Depth Collision to Distance Field Collision for a GPU particle system the preview window flickers, but returns back to normal when switching back to Scene Depth.
Found in 4.20 CL# 4369336, 4.21 CL# 4613538, 4.22 CL# 4715968
The preview window of the particles will flash and glitch when switched to Distance Field Collision.
The preview window should display the particles functioning as they would when placed in the editor.
There's no existing public thread on this issue, so head over toAnswerHub just mention UE-68532 in the post.