LC 8: Go stack doesn't work anymore?

[Tiemo Hollmann TB]

Hello,

This worked fine up to LC 6 (7 not tested), but doesn't works with the same
stack on LC 8

I have a splash stack, which is the LC standalone. At the end of making some
checks I open my "main" stack (as a stack file) and hide the splash stack.

Go stack myStackFile.Livecode (I also tried: go card 1 of stack myStackFile)

On windows myStackFile.LiveCode resides in the same folder as my standalone,
on Mac it resides in the /Contents/MacOS/ folder of my standalone

On windows this still works in LC 8 as in LC 6, but on OS X 10.11 just
nothing happens. No error, the result is empty, but myStackFile.LiveCode is
not opened, just nothing happens. In the IDE on Mac the file opens, but
doesn't comes to front. I only find it in the window menu of the IDE.

I can't think this could be a bug, because it's something so standard, but I
also didn't found anything what could have changed in LC 8.

Any help appreciated.

Tiemo