**System Information**
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: AMD Radeon(TM) R7 Graphics ATI Technologies Inc. 4.5.14831 Core Profile Context 21.5.2 27.20.20903.8001
**Blender Version**
Broken: version: 3.0.0, branch: master, commit date: 2021-12-02 18:35, hash: `rBf1cca3055776`
Worked: (2.92.0)
**Short description of error**
When the empty socket of the Group Input/Output node is selected, there is no visual feedback.
{F12787590}
2.92.0 GIF:
{F12787575}
3.0.0 GIF:
{F12787577}
**Exact steps for others to reproduce the error**
Press and hold the {key shift} to select the empty socket, although it can be selected, but the socket has no visual feedback.
GIF:
{F12787596}
.blend:
{F12787583}