Ok so this is what happened when I tried to install a CO Airlines livery for the 737-900WL following all instructions given in the manual: And then, when I attempted to open up the livery manager again, the -900WL was MISSING! HELP PLEASE! What's going on here?

Ok, just tried to install an -800WL livery and look: This is starting to get quite distressing. If anyone from PMDG could have a look at this that would be great!

It seems you can't have two aircraft.cfg and aircraft old.cfg files together, only one,then it will work.

Ok... so, delete the old one?

It seems you can't have two aircraft.cfg and aircraft old.cfg files together, only one,then it will work.

I'm not exactly sure what to do here, sorry. Could you explain?

I have restored the aircraft.cfg files to their original state and the aircraft have appeared back in the livery manager. But i still wont risk running it again until I figure out why the manager stopped working.

I'm going to be putting up a post/FAQ shortly about livery issues. This is corrupted aircraft.cfg stuff stemming from the read-only files that accidentally went out with the RTM version of the plane.

I'm going to be putting up a post/FAQ shortly about livery issues. This is corrupted aircraft.cfg stuff stemming from the read-only files that accidentally went out with the RTM version of the plane.

Would this cause the livery manager to stop working altogether?

As Stated above the Aircraft.cfg is in read only mode. Right click it and take off the read only flag. Second make sure you are only installing one type of Livery at a time. Do not try to install 800, 800WL, 900 or 900WL together. For Example if you have 5 800WL, 3 900WL and 1 800 and 1 900. First click the 800WL from the list and install the 5 800WL then go back and install the 3 900WL, then install the 1 800 and then install the 1 900. I tried installing them all together at one time. This does not work. So be sure you only installing one aircraft group type at a time.Just a heads up for anyone who has Activesky like me and wants to install the Xgauge weather panel in the 737-NGX. Be sure to find your panel.cfg file and take the read only flag off or Activesky will not be able to install the panel. There is a panel.cfg file for each of the 4 aircraft.

As Stated above the Aircraft.cfg is in read only mode. Right click it and take off the read only flag. Second make sure you are only installing one type of Livery at a time. Do not try to install 800, 800WL, 900 or 900WL together. For Example if you have 5 800WL, 3 900WL and 1 800 and 1 900. First click the 800WL from the list and install the 5 800WL then go back and install the 3 900WL, then install the 1 800 and then install the 1 900. I tried installing them all together at one time. This does not work. So be sure you only installing one aircraft group type at a time. Just a heads up for anyone who has Activesky like me and wants to install the Xgauge weather panel in the 737-NGX. Be sure to find your panel.cfg file and take the read only flag off or Activesky will not be able to install the panel. There is a panel.cfg file for each of the 4 aircraft.

I've done all these steps already, but thanks for your input. The thing is, the Livery manager literally stops working before I can install one, let alone 5 liveries. I just have no clue what's causing this.As you can see from the top screenshot, it stops working while in the process of installing. Then, it wipes the corresponding aircraft.cfg file completely and I have to use the file restore tool to get it back. This is what caused the disappearance of the aircraft from the list of variants.

I'm going to be putting up a post/FAQ shortly about livery issues. This is corrupted aircraft.cfg stuff stemming from the read-only files that accidentally went out with the RTM version of the plane.

quite easy to fix just uncheck the read only file in ur aircraft ngx cfg fsx folder/simobjects/airplanes/ than ur ngx planes select the cfg select properties than uncheck the read only file box need to do this on ur ngx aircraft u have