The preview pic shows the EGT 2021. But the ext_config uses 2020 kn5 for hiding pLEDs. You define again the pLED stuff in ext_config, but hide them anyway. The pLED stuff is already defined in main config
Pls just put for EGT 2021
[MODEL_REPLACEMENT_0]; this hides position number
FILE=urd_darche_egt_2021.kn5, urd_darche_egt_2021_lod_b.kn5, urd_darche_egt_2021_lod_c.kn5
HIDE=IMSA_PANEL_LEFT, IMSA_PANEL_RIGHT
and for EGT 2020
[MODEL_REPLACEMENT_0]; this hides position number
FILE=urd_darche_egt_2020.kn5, urd_darche_egt_2020_lod_b.kn5, urd_darche_egt_2020_lod_c.kn5
HIDE=IMSA_PANEL_LEFT, IMSA_PANEL_RIGHT