**System Information**
Operating system: macOS 10.13.6
Graphics card: AMD Radeon HD 6970M 1024 MB
**Blender Version**
2.80b, 387c1f2e0d5d, 2019-05-16
**Short description of error**
When I select a material node in the Shade Editor and I try to resize it horizontally, this moves, I can't resize it. I don't know if there is a setting to unlock this or it's a bug.
{F7043224}
**Exact steps for others to reproduce the error**
1. Create Material or select existing one that it uses nodes.
2. Go to Shading and select a node.
3. Try to resize the node horziontally.
Based on the default startup.