Some DEM data rendering appear strange

[wuqi]

osgEarth Version (required):3.0.0 RC1

Description of the problem:

Some DEM data rendering appears with strange grid patterns,Not all ASTGTM datas are wrong,only some of them,very strange .The file is attached at the end.

What you have tried:

I have tried converting the projection and modifying the data format, but the results are still incorrect,

Screenshot, code block, or data file that will help reproduce the issue:

the wrong file:

ASTGTM_N36E117.img.zip

the rigth file:

ASTGTM2_N37E112_dem.zip

[gwaldron]

We were not able to reproduce this effect in the latest osgEarth version 3.7.
Perhaps you can try a newer version?
Otherwise, can you provide the coordinates where you see this effect?