The Max ARM64 rendering problem

[sergei]

I'm executing the following command:

osgearth_imgui readymap.earth 

But the output looks quite odd ( see screenshot below)
Also the stdout and stderr show bunch of the errors:

[osgEarth]* [VirtualProgram] Program will not link!
VERTEX glCompileShader "main(vertex)" FAILED
VERTEX Shader "main(vertex)" infolog:
ERROR: 0:27: 'flat' : syntax error: syntax error

FRAGMENT glCompileShader "main(fragment)" FAILED
FRAGMENT Shader "main(fragment)" infolog:
ERROR: 0:9: 'flat' : syntax error: syntax error

glLinkProgram 0x600002fc8960"Terrain image layer" FAILED
Program "Terrain image layer" infolog:
ERROR: One or more attached shaders not successfully compiled

[osgEarth]* [VirtualProgram] Program will not link!
Warning: detected OpenGL error 'invalid operation' at start of State::apply()

The full output is the attached text file
out.txt.gz

Any hint will be appreciated.