Hello!
My problem seems to be similar to the thread "Scenery Library Error" started by BamaKevin in this forum, but I didn't find any solution there. I am running FSX Steam Edition in Windows 10. I have not deleted any scenery files from FSX that I know of, but I have been installing them. Here's what happened: Yesterday, I installed 3 RTMM sceneries - Totem Bight Ops Center, PAKT Ferry (I have the ORBX PAKT installed), and Lucky Lindy's Place. I keep my RTMM sceneries in AddonScenery/RTMM, and I added them to the scenery library just like always. On starting FSX (through the Steam interface) I get the following (long) series of error dialogs:
Scenery.CFG file error: Local scenery directory (...
1. Addon Scenery/SCENERY) in scenery Area.128 not found
2. Addon Scenery\scenery\AhZx_LIB SUB Library FSXP3D\SCENERY) in scenery Area.146 not found
3. Addon Scenery\scenery\CeyX_Sceneries_Libraies FSXP3D\S in scenery Area.147 not found
4. Addon Scenery\scenery\EZ Scenery Library FSXP3D\SCENERY) in scenery Area.148 not found
5. Addon Scebert\scenery\RWY12 LobraryFSXP3D\SCENERY) in scenery Area.149 not found
6. Addon Scenery\Scenery\RTMM Object LibraryFSXP3D\SCENERY) in scenery Area 150 not found
7. Addon Scenery\scenery\RTMMTwo Object LibraryFSXP3D\Scenery) in scenery Area.151
8. Addon Scenery\scenery\RTMM Medical Library TEMP\SCENERY) in scenery Area 152
9. Addon Scenery\scenery\FSXP3D WH_BWEP Objects_SW\SCENERY) in scenery Area.153
10. Addon Scenery\scenery\RTMM APP Library TEMP\SCENERY) in scenery Area.154
…not found. Click OK to continue.
(The RTMM libraries are installed at the top of the scenery library list and checked.)
Once I click through all 10 of the error messages(!!) FSX starts and seems to run normally. Last night I flew from Yes Bay Lodge to Totem Bight Ops Center (which seems to display just fine) with no problems.