I have a fresh installation of Visual Studio 2015 Pro Update 2 + SSDT (June 2016)
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When I attempt to edit C# code of my SSSIS script component (clicking on Edit Script...), VSTA does open without any warning/error but does not display anything (like if VSTA was called without specifying a solution to open).
However I can see the temporary solution is properly created in the background in a subfolder of folder:
C:\Users\XXX\AppData\Local\Temp\Vsta\SSIS_SC130...
I can even manually open the solution directly from this folder without any problem.
Any idea why the solution does not automatically open in VSTA ?