Did not help for me ,
I changed the numbers and skip 1 number in sequence.
Did not help , the topic you posted is what i did already trying to solve the problem.
This is what i did in the aircraft text
[fltsim.0]
title=Boeing 737-800 Paint1
sim=Boeing737-800
model=
panel=
sound=
texture=1
kb_checklists=Boeing737-800_check
kb_reference=Boeing737-800_ref
atc_id=N737W
atc_airline=Boeing
atc_flight_number=
ui_manufacturer="Boeing"
ui_type="737-800"
ui_variation="Boeing livery"
ui_typerole="Commercial Airliner"
ui_createdby="Microsoft Corporation"
description="One should hardly be surprised that the world's most prolific manufacturer of commercial aircraft is also the producer of the world's most popular jetliner. The 737 became the best-selling commercial jetliner worldwide when orders for it hit 1,831 in June 1987 (surpassing Boeing's own 727 as the previous champ). However, it wasn't always that way\s in the first few years of production, there were so few orders that Boeing considered canceling the program. They didn't, and the airplane has more than proven itself in over three decades of service."
[fltsim.1]
title=Boeing 737-800 Paint2
sim=Boeing737-800
model=
panel=
sound=
texture=2
kb_checklists=Boeing737-800_check
kb_reference=Boeing737-800_ref
atc_id=N737X
atc_airline=World Travel
atc_flight_number=
ui_manufacturer="Boeing"
ui_type="737-800"
ui_variation="World Travel Airlines"
ui_typerole="Commercial Airliner"
ui_createdby="Microsoft Corporation"
description="One should hardly be surprised that the world's most prolific manufacturer of commercial aircraft is also the producer of the world's most popular jetliner. The 737 became the best-selling commercial jetliner worldwide when orders for it hit 1,831 in June 1987 (surpassing Boeing's own 727 as the previous champ). However, it wasn't always that way\s in the first few years of production, there were so few orders that Boeing considered canceling the program. They didn't, and the airplane has more than proven itself in over three decades of service."
[fltsim.2]
title=Boeing 737-800 Paint4
sim=Boeing737-800
model=
panel=
sound=
texture=4
kb_checklists=Boeing737-800_check
kb_reference=Boeing737-800_ref
atc_id=N737T
atc_airline=Orbit
atc_flight_number=
ui_manufacturer="Boeing"
ui_type="737-800"
ui_variation="Orbit Airlines"
ui_typerole="Commercial Airliner"
ui_createdby="Microsoft Corporation"
description="One should hardly be surprised that the world's most prolific manufacturer of commercial aircraft is also the producer of the world's most popular jetliner. The 737 became the best-selling commercial jetliner worldwide when orders for it hit 1,831 in June 1987 (surpassing Boeing's own 727 as the previous champ). However, it wasn't always that way\s in the first few years of production, there were so few orders that Boeing considered canceling the program. They didn't, and the airplane has more than proven itself in over three decades of service."
[fltsim.3]
title=Boeing 737-800 Paint5
sim=Boeing737-800
model=
panel=
sound=
texture=5
kb_checklists=Boeing737-800_check
kb_reference=Boeing737-800_ref
atc_id=N737T
atc_airline=Pacifica
atc_flight_number=
ui_manufacturer="Boeing"
ui_type="737-800"
ui_variation="Pacifica Airlines"
ui_typerole="Commercial Airliner"
ui_createdby="Microsoft Corporation"
description="One should hardly be surprised that the world's most prolific manufacturer of commercial aircraft is also the producer of the world's most popular jetliner. The 737 became the best-selling commercial jetliner worldwide when orders for it hit 1,831 in June 1987 (surpassing Boeing's own 727 as the previous champ). However, it wasn't always that way\s in the first few years of production, there were so few orders that Boeing considered canceling the program. They didn't, and the airplane has more than proven itself in over three decades of service."
[fltsim.4]
title=Boeing 737-800 Paint6
sim=Boeing737-800
model=
panel=
sound=
texture=6
kb_checklists=Boeing737-800_check
kb_reference=Boeing737-800_ref
atc_id=N737T
atc_airline=
atc_flight_number=
ui_manufacturer="Boeing"
ui_type="737-800"
ui_variation="Unmarked Airliner"
ui_typerole="Commercial Airliner"
ui_createdby="Microsoft Corporation"
description="One should hardly be surprised that the world's most prolific manufacturer of commercial aircraft is also the producer of the world's most popular jetliner. The 737 became the best-selling commercial jetliner worldwide when orders for it hit 1,831 in June 1987 (surpassing Boeing's own 727 as the previous champ). However, it wasn't always that way\s in the first few years of production, there were so few orders that Boeing considered canceling the program. They didn't, and the airplane has more than proven itself in over three decades of service."
[fltsim.5]
title=Boeing 737-800
sim=Boeing737-800
model=
panel=
sound=
texture=
kb_checklists=Boeing737-800_check
kb_reference=Boeing737-800_ref
atc_id=N737Z
atc_airline=
atc_flight_number=
ui_manufacturer="Boeing"
ui_type="737-800"
ui_variation="White"
ui_typerole="Commercial Airliner"
ui_createdby="Microsoft Corporation"
description="One should hardly be surprised that the world's most prolific manufacturer of commercial aircraft is also the producer of the world's most popular jetliner. The 737 became the best-selling commercial jetliner worldwide when orders for it hit 1,831 in June 1987 (surpassing Boeing's own 727 as the previous champ). However, it wasn't always that way\s in the first few years of production, there were so few orders that Boeing considered canceling the program. They didn't, and the airplane has more than proven itself in over three decades of service."
[fltsim.6]
title=Boeing 737-800 EasyJet Airlines
sim=Boeing737-800
model=
panel=
sound=
texture=EASYJET
kb_checklists=Boeing737-800_check
kb_reference=Boeing737-800_ref
atc_id=TC-JGR
atc_airline=Turkish
atc_flight_number=1987
ui_manufacturer="Boeing"
ui_type="737-800"
ui_variation="EasyJet Airlines"
ui_typerole="Commercial Airliner"
ui_createdby="Microsoft Corporation"
description="One should hardly be surprised that the world's most prolific manufacturer of commercial aircraft is also the producer of the world's most popular jetliner. The 737 became the best-selling commercial jetliner worldwide when orders for it hit 1,831 in June 1987 (surpassing Boeing's own 727 as the previous champ). However, it wasn't always that way\s in the first few years of production, there were so few orders that Boeing considered canceling the program. They didn't, and the airplane has more than proven itself in over three decades of service. Repaint by Mustafa SAZAK"
[fltsim.7]
title=Boeing 737-800 Ryanair
sim=Boeing737-800
model=
panel=
sound=
texture=RA
kb_checklists=Boeing737-800_check
kb_reference=Boeing737-800_ref
atc_id=EI-DAP
atc_airline=Ryanair
atc_flight_number=DAP
ui_manufacturer="Boeing"
ui_type="737-800"
ui_variation=Ryanair
ui_typerole="Commercial Airliner"
ui_createdby="Microsoft Corporation"
description="One should hardly be surprised that the world's most prolific manufacturer of commercial aircraft is also the producer of the world's most popular jetliner. The 737 became the best-selling commercial jetliner worldwide when orders for it hit 1,831 in June 1987 (surpassing Boeing's own 727 as the previous champ). However, it wasn't always that way\s in the first few years of production, there were so few orders that Boeing considered canceling the program. They didn't, and the airplane has more than proven itself in over three decades of service."