OK lets try this one more time,
I have erased previous downloaded map folders and re-started with a new clean install.
Now all maps show the buildings and airfields and equipment.
Great!

Now as for this post about the QMB missions. (See the Post below)
I have installed them into my 4.12 game,
but nothing is happening in my 4.12 game version.
PLEASE , EXPLAIN to me again, WHERE exactly to put these files ?
Downloading files with no proper "instructions" and guessing where the files go to, makes not a happy game player
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Under construction... Summer, Winter Updates added!!!
The author kindly asked me to publish his latest overhaul of South-Germany.
I'l post here some quick Info to help Klaus promoting his fine work.
Of course he earns the applause and be sure to thank him for that wonderfull
new Update. 
Fixes include a bunch of corrected airfield Spawnpoints, layouts that fixes
severe AI laggs from past versions. We can consider the Map now Offline and AI-friendly.
incl. overhauled Leipheim, Lechfeld, Neuburg, Reichsautobahn auxillary runways ...
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Memmingen Airfield
Installation:
copy and paste the actors Files in their determined folders and make sure to
overwrite according the usual procedure...
Download
New GermanySouth & GermanySouthCrew Actors Files
https://www.mediafire.com/download/3270qns7k4mxdw9/New_Actors_QMB.rar
kindly provided by Klaus109
New GermanySouthWinter & GermanySouthWinterCrew Actors Files
https://www.mediafire.com/download/elx7j862hkbyrxk/QMB_Winter_Actors.rar
kindly provided by Klaus109
Link to new Set of QMB Missions for the updated Map
https://www.sas1946.com/main/index.php?topic=46770.msg519927#msg519927