OS X 64-Bit standalone doesn't launch

[Tiemo Hollmann TB]

Hello,

 

OS X 10.11. LC 8.1.1 When I create a 64-bit standalone from my main program,
I can't start the standalone. When double clicking the .app there is a short
flickering, but nothing, just nothing happens. When creating a 32-bit
standalone of the same program, it starts quite normal. 64-bit standalones
of other programs run quite normal.

 

Any idea is very welcome what is going on and where to start searching or
what to look for.

 

Thanks

Tiemo