Setting custom coalitions

I'm having this problem since a while. I create a new mission on ME and set custom coalitions. But when the editor loads, it shoes the regular modern coalitions.

For example, on the attached screenshots, I set only Iran and US. But when it loads, it shows modern countries' coalition (without Iran, which by default is neutral). I'm also attaching an example mission where I set custom coalitions (Iran on the red side among others) but it shows regular modern coalition.

Am I doing something wrong, is this a know problem, or perhaps could be my fault due to some game file being corrupted? I have not tried to do a clean reinstall yet. I'm just asking to avoid it if unnecesary

EDIT: I had used this method https://forums.eagle.ru/showthread.php?t=121373 to change countries sometimes. Looking at the "mission" file from my mission, Iran (34) does appear on the red side:

["red"] =

{

[1] = 18,

[2] = 24,

[3] = 27,

[4] = 29,

[5] = 34,

[6] = 0,

[7] = 43,

[8] = 19,

[9] = 47,

}, -- end of ["red"]

AbuMusa2.miz

EDIT: I had used this method https://forums.eagle.ru/showthread.php?t=121373 to change countries sometimes. Looking at the "mission" file from my mission, Iran (34) does appear on the red side:

Hi,

You have to be very careful when using information more than 2 years old, as DCS has changed considerably on the last couple of years. If you need to edit a Mission's coalition, use Uboats & Grimes Mod for doing it:

https://forums.eagle.ru/showthread.php?t=168720

I used it for fixing your Mission:

AbuMusa3 (by Darcaem).miz

Hi,

 

You have to be very careful when using information more than 2 years old

Fair enough.

Thank you so much for the info sir!