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Question: Problem with Mean in Maple 14 Statistics package

Why the "Mean" command of the "Statistics" package gives the correct result with MAPLE 12 and MAPLE 13 and not with MAPLE 14 ?

restart;
with(Statistics):
X := RandomVariable(('Uniform')(-1, 1)):
Y := RandomVariable(('Uniform')(-1, 1)):
pdf := simplify(PDF(sqrt(X^2+Y^2), rho)):
R := RandomVariable(Distribution(PDF = unapply(pdf, rho))):


The mean may be computed using (the answer is correct)
int(rho*pdf, rho = 0 .. sqrt(2)):

          sqrt(2)/3+ln(1+sqrt(2))/6-ln(sqrt(2)-1)/6

Why the following command gives the correct result with MAPLE 12 and MAPLE 13 and not with MAPLE 14 ? Computation must be interrupted:

Mean(R):

Mean(R,numeric) is correct.

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