mapDepthToColor example doesn't show aligned image after version 0.7.2

[RobertoPuglieseFusco]

Hello, I am having this strange issue. The example mapDepthToColor runs in all the versions but it does not show the depthToColorImg for version after 0.7.2.

Thanks for the library and your help.

[ftqtfff]

I have the same problem.

[ThomasLengeling]

just fixed