TProfile2D does not work in my app

[babaMM]

Hi,

I have a stand-alone application to fill histograms and profiles. Today for the first time I tried a TProfile2D,
after compiling and executing the program when I try to draw I don't see nothing, but the entries are there! (I see this from the Stats panel). Then I try

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->Draw("colz")

and I have this error:

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Error in <TGaxis::PaintAxis>: wmin (0.000000) == wmax (0.000000)

.

So I try with

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->Draw("surf")

and it seems that all the entries are on the z=0 plane, which is very strange since I checked them and they are not zeros.

Someone has any idea of what is going on?