For me, at least:
When snaking is on, the final circle moves along the path the slider would have taken, but no slider body actually shows up. When snaking is off, then the two endcircles appear without a body. Neither way works.
Autoplay does nothing, the slider body still isn't visible.
No map I've tried works.
The editor has the same problem, as does the editor test mode. I get an error message intermittently, I don't know if it's only in editor test, but that's the only place I've gotten it so far (twice, I think)... i'll try to get that error again and post it here, but it might have been sent to you earlier(?). I remember that it was something about needing both a pixel and vertex shader,
and there was something that looked like a function declaration.EDIT: Ah, I got it when starting test in the middle of a slider. It showed a white sliderbody, and then crashed to this error (spoiler'd):
SPOILERSystem.InvalidOperationException: Both a valid vertex shader and pixel shader (or valid effect) must be set on the device before draw operations may be performed.
at Microsoft.Xna.Framework.Graphics.GraphicsDevice.VerifyCanDraw(Boolean bUserPrimitives, Boolean bIndexedPrimitives)
at Microsoft.Xna.Framework.Graphics.GraphicsDevice.DrawIndexedPrimitives(PrimitiveType primitiveType, Int32 baseVertex, Int32 minVertexIndex, Int32 numVertices, Int32 startIndex, Int32 primitiveCount)
at #6U.#4d.Draw(List`1 , Single , Color , Single , String , Boolean )
at #YX.#UX.Draw()
at #4X.#lf.#5F()
at #ee.#Re.Draw(GameTime )
at Microsoft.Xna.Framework.Game.DrawFrame()
EDIT2: after that error and a click on "Restart osu!", I needed to force-kill osu!, if that's relevant at all