Alt+RMB(Two-finger tap) on the node connector should work, no?

There are three ways to delete node connections:

1. Hold alt and drag RMB in empty space to start drawing a cutting line, and cross the connections you want to delete, and then release!
2. Hover your mouse over a connector (Not the line, the connector), and hold alt and click RMB
3. Hover your mouse over a connector (Not the line, the connector), and press backspace

If you want to be able to cut/paste/move nodes, open a new request to keep things separate :)

There are three ways to delete node connections:

1. Hold alt and drag RMB in empty space to start drawing a cutting line, and cross the connections you want to delete, and then release!
2. Hover your mouse over a connector (Not the line, the connector), and hold alt and click RMB
3. Hover your mouse over a connector (Not the line, the connector), and press backspace

If you want to be able to cut/paste/move nodes, open a new request to keep things separate :)

It seems all meshes have imported with a scale of 0.01, so the preview mesh was simply too small to be seen!
1. Search for sf_meshes in the project browser. (ShaderForge/Editor/Resources/Meshes/sf_meshes.fbx)
2. Select it and set its import scale to 1 instead of 0.01

Did it solve the issue?

Ah, cool! Upload it somewhere and link it :)

Strange. I suppose there's some setting in that case. Perhaps in quality settings?

That's scary. Does it happen in a fresh project too? What is your current render target?

Alright, no problem :)
Thanks for the report anyhow!