NDSolveValue: lost solutions?

Here is an example of an ode problem very easy with two solutions:

sol = NDSolve[{x'
Plot[X[x[X[x

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as expected.

If I try to solve the same problem with NDSolveValue

X = NDSolveValue[{x'

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Mathematica only evaluates a solution !!!

I wonder …, any idea what might be the reason? Thank you