**System Information**
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: Radeon RX 5500 XT ATI Technologies Inc. 4.5.14736 Core Profile Context 20.8.3 27.20.12027.1001
**Blender Version**
Broken: version: 2.90.0, branch: master, commit date: 2020-08-31 11:26, hash: `rB0330d1af29c0`
Worked: Never tried before{F8852357}
{F8852356}
**Short description of error**
Y axis mirror enabled by hot key does not immediately show enabled.
**Exact steps for others to reproduce the error**
Assign Hoy Key to Mirror Y axis button, button does not show as active until the mouse cursor crosses into a different pane/window.