How to debug the RJ45 LED issue

Hi,
How to debug the RJ45 LED issue? The LED should be Green at 100M and Orange at 1G, but it's always shown kind of yellow at any speed (Both LEDs could light up together). LED nets are individuals from PHY through an inverter to a connector. The schematic should be correct. So, it might PHY's issue(MDIO's issue?)?
View attachment 163069
From PHYView attachment 163071
Through an inverter
View attachment 163072
ETH_PHY_LED1_N and ETH_PHY_LED2_N connect to a LED in a connector.
View attachment 163068 View attachment 163070