Copy your flight model type to the sim= line

Antonov_AN2_v2.1
Antonov_AN2_v2.3


[fltsim.xxx]
title=Antonov AN2 HA-ANC Old Colors
sim=
model=
panel=
sound=
texture=HA-ANC_Old_Colors
kb_checklists= AN-2_check
kb_reference=
atc_id_color=0xff000000
atc_id=HA-ANC
atc_airline=
atc_flight_number=
atc_parking_types=RAMP
ui_manufacturer="Antonov"
ui_type="An-2"
ui_variation="HA-ANC Old Colors"
ui_typerole="Single Engine"
ui_createdby="SibWings Lab."
description="Repaint by Zoltn Mszros"