• Which the release of FS2020 we see an explosition of activity on the forun and of course we are very happy to see this. But having all questions about FS2020 in one forum becomes a bit messy. So therefore we would like to ask you all to use the following guidelines when posting your questions:

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    Any other question that is not specific to an aspect of development or tool can be posted in the General chat forum.

    By following these guidelines we make sure that the forums remain easy to read for everybody and also that the right people can find your post to answer it.

FSX My FSX object library is broken

To begin with, I have not done any FS2004 design. Having said that, some years ago I created a bunch of FSX sceneries and with that my own Library with the Library Creator X (2.0.4) and it worked fine, the models were all FSX models (I repeat).

Today I tried to read my library and it showed all my objects in RED, now all the objects have their GUID empty and if I try to re-insert it with the same model it says it is an FS2004 model or so when it is really an FSX model (I repeat I have NEVER created FS9 models and I used them before in FSX in my FSX lib).

So, why is that? How can I fix that? If I need to re-add them I will need to preserve the GUID to the one I had registered before or all my sceneries will be broken and will be a pain to go through all the objects.
Hi Emilio:

Until Arno has some time to reply, just an idea:

Load your scenery object library BGL into Arno's ModelConverterX (aka "MCX") and examine the GUID format for each MDL to see whether it is the FS9 or FSX alpha-numeric format.

You may opt to utilize the "Batch Convert" functions as needed:


Hope this helps ! :)


PS: I linked to this same info in my reply to your other thread ...here:



Staff member
FSDevConf team
Resource contributor

If they are shown in red the mdl files are not found. Check your xml file, maybe it uses absolute paths that are not valid anymore.

Or create a new library with your mdl files. For FSX the guids are in the mdl, so they won't change.