i sometimes get this error, randomly.
but if i delete a specific model with a texture size of 1024x1024
the error doesnt occur.

Probably your graphics card not support that size of texture

it supports that size, because if i open that model only then i get no errors.

unsupported texture version, i get this error more likely with dds textures of some version.

what do you mean with version?? its just a bitmap.

i was talking abut dds versions, dds have several versions.

This was an error message of an old version, and meant that the texture format is not supported with the selected video settings. Are you sure that you're using the current version?

yes i am, i have installed the version 7.82.3. i try to reinstall the update. hope that it helps.