Aircraft's update doesn't work

[m275500 5]

Hey guys, I have already made my campaign and it's working fine. Moreover, aircrafts' squadrons with  UpgradeType=ANY did respond to the command, but I can't upgrade my mig 21 for a weird reason.

Look,

UpgradeType=FIXED
Upgrade[01].Date=6/5/1973
Upgrade[01].Type=MiG-21MF
Upgrade[01].Texture=Afghanistan3
Upgrade[02].Date=6/5/1979
Upgrade[02].Type=MiG-21bis
Upgrade[02].Texture=SovietCamo1

All aircrafts here has the name of their respective folder in object/aircraft, and that's the same case with texture as it has got the same folder's name. So, I don't really get the idea why it's not working should I gave it it's ingame texture name or use the texture folder's name (which I am already using) ? Or is there is something wrong with the command as it's under the missions types' commands not above it?  Thanks for your help in advance.

Edited February 23, 2021 by m275500

[m275500 5]

After answering the first question, I want to know how does the campaign upgrade system work. For instance, what affects it for the player and Al? What is all factors affecting this system,? And I have noticed a werid thing when I put afghanisilver1 (a skin which doesn't exist, but it's the mig21f skin above) rather than the real Afghanistan3 skin in my mig21mf folder, the aircraft upgrades and I don't know how it did that with a skin which doesn't exist, and it was using the first of its skins I think Algeria and if the first folder is czech, it will use czech. So, why does that happen ?

[RustyKurnass 657]

Think that the problem about the update of the planes is that the game engine can't manage the upgrade of hte plane model and the skin at the same time.

You can upgrade the same plane's skin ( MIG-21MF skin-1 to MIG-21MF skin-2) or different plane with the same skin name ( MIG-21MF skin-1 to MIG-21Bis skin-1), Happened also to me in the past

Your lines are for different skins, while the two will be match each other

UpgradeType=FIXED
Upgrade[01].Date=6/5/1973
Upgrade[01].Type=MiG-21MF
Upgrade[01].Texture=Afghanistan3  <--------------
Upgrade[02].Date=6/5/1979
Upgrade[02].Type=MiG-21bis
Upgrade[02].Texture=SovietCamo1  <----------

[m275500 5]

18 minutes ago, RustyKurnass said:

Your lines are for different skins, while the two will be match each other

Yeah, I did tried to make them both afghanisilver1 like the first one (even though I don't have a folder with that name) and it worked but I can't control the skin as it just picks it randomly lol. However, tk campaigns does upgrade aircrafts and it uses a reasonable commands like mine, not the same plane or the same skin name, how is that though?