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Bug introduced in 10.4 and fixed in 11.0


I am running Mathematica 10.4.1.0 on a MacBook Pro OSX 10.11.5. I opened the documentation for TransformedRegion, went to this example in Scope > Formula Regions. When I open this particular documentation, the image is present, but when I ran these two lines:

pr = ParametricRegion[{Sin[θ], Sin[2 θ]}, {{θ, 0, 2 π}}]
RegionPlot[pr]

I got a blank image:

enter image description here

I've tried quitting the kernel and I've tried restarting Mathematica, but it still doesn't work.

Anyone else experiencing this?

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    $\begingroup$ Yep, same here on Windows. Also the first basic example for ParametricRegion fails. $\endgroup$ – Simon Woods Jun 26 '16 at 21:08
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    $\begingroup$ I seem to have the same problem. The example given in Mathematica help ParametricRegion[{Cos[t], Sin[t]}, {{t, 0, 2 Pi}}]] also fails (Mathematica 10.4.1, 64-bit Linux) $\endgroup$ – mikado Jun 26 '16 at 21:09
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    $\begingroup$ Curiously it works if I replace 2 Pi with 6.28 $\endgroup$ – Simon Woods Jun 26 '16 at 21:12
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    $\begingroup$ OK. I'll report this to Wolfram. $\endgroup$ – David Jun 26 '16 at 21:30
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    $\begingroup$ and works with 1.9999999 Pi ... $\endgroup$ – Young Jun 26 '16 at 21:37
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As noted, this is fixed. Here it is on 11.0.1.

enter image description here

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