I think both applications do the correct. Please remind the following:
In MLCAD you decided to not show the model "vehicle_045_DB425SharedWheelset.ldr".
This results in a comment line with MLCAD HIDE metacommand.
MPDCenter only works according the line types.
So there is a comment line with a file name and this comment line will be exported in exactly the same format - comment.
A comment can not be inlined!
As a result you will have a file with a comment line that has a filename in the comment and MLCAD assume that this might be shown later but is not available.
I think MPDCenter should not support all the possible metacommands from other applications.
I hope this answers your question :-)
In MLCAD you decided to not show the model "vehicle_045_DB425SharedWheelset.ldr".
This results in a comment line with MLCAD HIDE metacommand.
MPDCenter only works according the line types.
So there is a comment line with a file name and this comment line will be exported in exactly the same format - comment.
A comment can not be inlined!
As a result you will have a file with a comment line that has a filename in the comment and MLCAD assume that this might be shown later but is not available.
I think MPDCenter should not support all the possible metacommands from other applications.
I hope this answers your question :-)