FF6 does not start when FF5 is running. (Staff: By design)

This is repeatable and even re-occurs after rebooting.

Windows 10 system
NVidia 980 ti+
24 GB Ram

If FF5 is running and FF6_beta is attempted to be started from the start menu, the program will activate the cursor loading sequence animation and then quit without error or message. This is repeatable.

Verified:
FF5 link is located at C:\Program Files (x86)\Filter Forge 5\Bin\Filter Forge.exe
FF6_beta is located at C:\Program Files\Filter Forge 6\Bin_x64\Filter Forge.exe

Why should it? As Rick Duim said, this is expected behavior.

Politely...

I think there are two issues here:

1) Two different versions 5 and 6 should be able to run separately and at the same time. (Adobe, Autodesk, Articulate, etc. all do... even pesky Houdini and Nuke). This is a model programming issue.

For demo and beta purposes, it is important to compare versions side by side. What works, what does not, expectations, and documentation, etc. at least in my workflow.

2) While I normally do not use the filter forge tool set for Photoshop because it is slow, using Photoshop and another program including Filter Forge stand alone should work. GenArts Particle Illusion works separately in After Effects and independently... together... on one machine. This is great for development and workflow implementation without waiting for After Effects to render out the scene.

I understand the provisions to "protect" your program. But I do not understand blanket terseness in comments like "Why should it". It appears that comments are not welcome.

I'm sorry if my comment appeared too harsh. Didn't mean to offend anyone.

However I'll put it again: this is not an issue, and you won't be able to run two program copies at a time.