I'm having the problem of distorted or fragmented maps using osgEarth in OMNeT++. The point of failure is not clear to me. As I am new to both, I hope one of you guys can tell me what's going on here or how I can narrow down the problem... Thanks!
That looks like corrupted texture coordinates. Which GPU are you using? Is the driver up to date? I also recall seeing this kind of thing with some of NVIDIA's features enabled...but that was a long time ago.
You may also want to consider moving up to osgEarth 2.7 (or better yet, the master branch).
Addition: the following error sounds like it may have something to do with it...
ERROR 6: Unable to load PROJ.4 library (libproj-0.dll), creation of
[osgEarth]* [SpatialReference] SRS xform not possible
From => UTM Zone 19, Northern Hemisphere
To => WGS 84